Jump to content

Shall we rescue another eBay mess? Seiko 6309a.


Recommended Posts

I was trawling the "Ending Soon" filter on eBay and came across this Mumbai Special for $32 AUD. inc shipping. Instantly I knew it was gonna be garbage, and I had to have it. Aftermarket window caseback with no make/model marking. The dial is way too good looking and slightly off center, so the feet probably broken. There's a good chance it's going to be a junkyard inside this thing.

image.png.03c0fab12dcd61a1d34e8456f2fbd11e.png

 

After it arrived it sat in my drawer for a few weeks while I busied myself with learning the ropes on my basketcase 7009a. Today, I finally felt the urge to pull it apart. 

The first thing I noticed is this is 100% not the watch I bought. Different rotor, different crown, different strap, the case is absolutely covered in shmoo. They must have a barrel of these things that they just dip into and throw into the post.

image.png.484f71a1a9348a67dfcb4cc8f002a0dd.png

Gross!

image.thumb.png.d84111bb959119b815060b2d5e71612e.png

So my hopes are already quite high that this is going to be a great movement.

I opened it up and removed the rotor. To my surprise, this is a clean looking movement otherwise.

image.png.0a61dba1fef606b5265b2fd9a1d43d6b.png

 

Trying to remove the dial, and one of the dial feet screws is missing. Not a great sign. Of course the dial is aftermarket for another movement, with the feet removed so it can be glued down. They also managed to get glue onto the movement ring (but I'm happy it came with one!). Otherwise the date dial and day disk look pretty decent.

image.thumb.png.a645bba4f7e8adddb0dd12b7f0864cd7.png

After that, disassembly went quite well with no obvious missing or broken parts. The barrel looks a bit scored up but I'll see how it cleans up. The mainspring is in good condition otherwise. At first glance the barrel arbor hole in the mainplate doesn't appear to be worn or ovaled, but I'll know more when I do a better inspection later. All the screws are in individually labelled ziploc bags so I don't mix them up, I'm still not great at keeping track of those, but otherwise everything is ready for a clean.

image.thumb.png.1f338680406d7cf4c744c7862f90f7de.png

 

All I really need is a dial foot screw, otherwise (pending inspection of jewels etc) this movement should be good to clean and go back together.

I think I might try and find another 6309a movement with a decent dial and case. I can't find this particular case anywhere else so have no idea what case model this is. The front bezel is kinda beat up too, so I'm happy to put this movement into another case.

 

EDIT: Pulled the trigger on a somewhat decent-ish looking retro styled 6309-4020 non-runner. It will need a new crystal but that can be sourced. The case and dial seem in good nick, and it will be good to have spare parts if needed. Gonna be a couple weeks before I get that.

Edited by lexacat
  • Like 1
Link to comment
Share on other sites

16 minutes ago, Nucejoe said:

How did you determine this? 

TIA

I popped it out of the barrel for a visual inspection and there doesn't appear to be any kinks except the usual spot where the bridle meets. The shape looks uniform and it's sitting flat. For my purposes it's re-usable. 

IMG_20230115_111951.thumb.jpg.887fab352c24c72ee08cf1c874ce331c.jpg

  • Like 1
Link to comment
Share on other sites

11 hours ago, watchweasol said:

Hi there is a whole industry in India recycling watches, I would hazard to suggest that any watch obtained from India is of the Mumbai cobbled school of watchmaking and any one buying one will appreciate that.   Buying one is a bit of a lucky dip.  Good luck with the clean up.

There sure is. It's incredibly pervasive. I'm starting to get an eye for them now. It's kind of sad how many actually turn up in online auctions, which gives them some kind of legitimacy. 

I've recently bought some cheap case/bracelet/dial sets from Ali-X to house some 7009a's I've cobbled together from non-runners, and those brand new aftermarket parts come fully branded as Seiko, right down to the case numbers, matching serial, and all logos and branding. I thought I was just buying a clean generic case.

So yeah, there's a lot of mud in the water it seems for seiko in particular.

But they are fantastic for practising on, since I'm not super invested in these things having any kind of "legacy".

Link to comment
Share on other sites

Still waiting on the other movement to arrive, along with some other bits and pieces, but I think I've decided what I'm going to do with this watch now.

image.png.f04f18525a8009b88db3d5515568d822.png

 

That's right, once I've got it up and running I'm going to slap it into a dive case. Specifically this one I got from Ali-X:

image.png.7abfb81687a0d029d49559dfd4872796.png

 

I'm planning to clean and reassemble the movement today, but can't complete building this until a few parts appear. I need a dial foot screw from the donor movement, a new dial and hands that I've ordered from speedtimerkollektion and a new stem that I've ordered just in case the one I have isn't the right length to work with this case and the screw in crown.

I've got a nice SS bracelet but the end links don't marry up to this case. I'm considering filing the end links to the right shape so I can use it, otherwise I've got a flat ended SS bracelet and a couple of silicone bands on the way.

 

 

Link to comment
Share on other sites

  • 2 weeks later...

Welp. The next 6309 turned up in the mail, and now I need to figure out if there are different versions of this movement. 

The barrel and train wheel bridge at the bottom is out of the eBay watch and has a broken transmission wheel pivot jewel.

The one at the top is from the movement that just arrived from SpeedTimerKollektion. The transmission wheel jewel looks fine but it's missing the two diashock settings.

Why are there diashock settings for what I assume are just the third and fourth wheel pivots? 

I'm guessing it won't matter so much if I use the top bridge instead of the bottom one.

IMG_20230131_182654.thumb.jpg.9416f8f7e9778690166d787fc527544f.jpg

EDIT: I just figured it out, the eBay 6309 came with a 6319 bridge (complete with broken jewel). I'm thinking I'll flip this restoration on it's head and use the speedTimerKollektion movement primarily, with parts from the eBay one where required.

 

The newly acquired movement was okay otherwise. Wanted to run and first inspection looks good. The mainspring is a mess and someone put a screw for the minute wheel bridge in the wrong spot, but hopefully I can turn these two piles of parts into a working, enormously heavy dive watch.

  • Like 1
Link to comment
Share on other sites

6 hours ago, thor447 said:

Just remember it this way.

Diashock = OK

Diafix = Evil  -  especially these:

image.png.a08df96292433e1fe4634a2d82f0ea02.png

What makes them evil? They're just garbage to work on?

 

It's gonna be another couple of weeks before I can work on this. One mainspring was completely trashed to start. I'm still having teething issues with getting automatic bridles into mainspring winders, so I've now managed to bend the only good 6309 mainspring I had. Now I'll need to order one from somewhere, but they all look to be 2x the cost of the watch in the first place. And shipping to here always takes about a billion years.

Just bought a new mainspring from Jules Borel for $54AUD................ jesus christ. I probably should have bought 3 more complete movements and taken my chance that one or more would have a decent mainspring.

Link to comment
Share on other sites

2 hours ago, Waggy said:

I've used this in the past with good results on 6309A - worth a look

Equivalent Mainspring ETA 2892a2.pdf 223.82 kB · 0 downloads

Oh wow, now I'm kicking myself for not asking here about alternatives before I pulled the trigger. I can get an ETA 2892a2 mainspring delivered for around $15....

That's awesome though, thanks for letting me know! If I manage to FU the one I've bought I'll try the ETA as my next option.

Link to comment
Share on other sites

My advice is Do not take the Diafix springs out...lolIncredibly difficult to install. Watchmaker level 100 stuff.

Should they be taken out to clean the jewels? Absolutely, and by someone with great talent and skill to re-assemble.

Mark makes it look easy on one of his videos. Others have fabricated very small tools to help the assembly process.

To each his own way however.

 

  • Like 1
Link to comment
Share on other sites

13 hours ago, lexacat said:

Oh wow, now I'm kicking myself for not asking here about alternatives before I pulled the trigger. I can get an ETA 2892a2 mainspring delivered for around $15....

That's awesome though, thanks for letting me know! If I manage to FU the one I've bought I'll try the ETA as my next option.

To be honest I find them better than the dedicated "Seiko" mainsprings which tend to have too large a hole in the centre for the arbour so you end up having to try and close it up (and risk breaking it) so the arbour will 'bite'. All you need to do with the ETA version is remember to flip them over when you install (coloured side of disc down instead of up) and they seem to be a better fit for the arbour so no modification required.

  • Like 1
Link to comment
Share on other sites

11 hours ago, Nibbler said:

My advice is Do not take the Diafix springs out...lolIncredibly difficult to install. Watchmaker level 100 stuff.

Should they be taken out to clean the jewels? Absolutely, and by someone with great talent and skill to re-assemble.

Mark makes it look easy on one of his videos. Others have fabricated very small tools to help the assembly process.

To each his own way however.

 

Haha that sounds like a challenge! Well, the good news is the bridge with the diafix settings has a broken jewel in it anyway, so I'm not really planning to use it for anything. I kinda want to have a go at removing/installing the diafix springs now...

 

2 hours ago, Waggy said:

To be honest I find them better than the dedicated "Seiko" mainsprings which tend to have too large a hole in the centre for the arbour so you end up having to try and close it up (and risk breaking it) so the arbour will 'bite'. All you need to do with the ETA version is remember to flip them over when you install (coloured side of disc down instead of up) and they seem to be a better fit for the arbour so no modification required.

Ah man, well hopefully the one I ordered does alright, the final bill came in and it was $60 all up. I could have gotten 4x ETA mainsprings for that price... Definitely the plan if all goes wrong!

  • Sad 1
Link to comment
Share on other sites

The 6309, 6319, and 6349 use different wheels.  The length and diameter of the pivots are different.  The parts sheets show different part numbers.  Seiko specific forums have topics in this.

The problem with the movements from where you are sourcing them is that they mix up all the parts and it may work or it may not. 

Link to comment
Share on other sites

22 hours ago, bklake said:

The 6309, 6319, and 6349 use different wheels.  The length and diameter of the pivots are different.  The parts sheets show different part numbers.  Seiko specific forums have topics in this.

The problem with the movements from where you are sourcing them is that they mix up all the parts and it may work or it may not. 

Thanks for that advice, that sounds like a headache... Fortunately I've not mixed the parts, both movements are stripped but separated. The 6309 I got from speedtimer looks more legit, the case style and age matches the model, and it didn't have any parts that were obviously incorrect. I'll at least do an eyeball inspection of the parts side by side to see how they compare, but think I'll primarily use the speedtimer movement for this build.

I'm still waiting for the mainspring to arrive in the mail. Maybe this week, probably next week.

I've also got a Tissot and an ancient Ehr in the mail, so I'm keen to move onto those next.

Edited by lexacat
Link to comment
Share on other sites

Hah i've always hovered over that buy now button on a mumbai special thinking how bad can it be? 
Let me guess, the listing for this said it was running great and serviced by one of their master watchmakers?  

I've always wondered what if any value could be squeezed out of a mumbai special. Like are the cases EVER legit? Are they fake? Iv'e seen some sorta nice looking ones for 30 bucks and figured there has to be 30 bucks worth of good parts there. Maybe not haha. Best of luck with this. 

  • Haha 1
Link to comment
Share on other sites

1 hour ago, Birbdad said:

Hah i've always hovered over that buy now button on a mumbai special thinking how bad can it be? 
Let me guess, the listing for this said it was running great and serviced by one of their master watchmakers?  

I've always wondered what if any value could be squeezed out of a mumbai special. Like are the cases EVER legit? Are they fake? Iv'e seen some sorta nice looking ones for 30 bucks and figured there has to be 30 bucks worth of good parts there. Maybe not haha. Best of luck with this. 

 

Buy one and find out 😉  If you pay very little and view it as buying for it's parts you'll be fine.

But generally they are cobbled together, you'll find the case doesn't match the dial, and the dial is fake/had it's dial feet removed and glued down to the movement.

Be full of grit and oil and you'll wonder how on earth it even ran.

  • Like 1
Link to comment
Share on other sites

On 2/1/2023 at 12:45 PM, Nibbler said:

My advice is Do not take the Diafix springs out...lolIncredibly difficult to install. Watchmaker level 100 stuff.

Should they be taken out to clean the jewels? Absolutely, and by someone with great talent and skill to re-assemble.

Mark makes it look easy on one of his videos. Others have fabricated very small tools to help the assembly process.

To each his own way however.

 

Here is a nice video on the topic

Link to comment
Share on other sites

well, of the 3 I've bought,

  • 1 had a movement that has so far kept great time and been relatively bulletproof.
  • 1 was missing movement spacer.
  • 2 had dials glued down.
  • 2 had hands in terrible condition.
  • 2 were missing dial spacers.
  • 2 movements had broken jewels.
  • 2 had individual parts that didn't match the movement (7019 mainplate in a 7009, and 6319 barrel bridge in a 6309).
  • All 3 had badly glued in, ill-fitting crystals.
  • All 3 were not water resistant, to the point they would condense in the slightest humidity.
  • All 3 had movements, dials, cases that were mismatched.
  • All 3 had decent balances.

I'd say it's a complete crapshoot, but you're not getting anything great.

It's probably better to buy a job lot of 7009a movements and a nice aftermarket case and bracelet, spacers, and gaskets.

  • Like 1
Link to comment
Share on other sites

On 2/9/2023 at 7:21 AM, LittleWatchShop said:

Here is a nice video on the topic

So that looks to be the best technique but don't you have to remove the setting entirely for cleaning? I'm about to work with these things myself and they have such a horrid reputation i'm really nervous i'm gonna lose some because i PROBABLY have two excellent working 7006a movements but if i lose one of these damn things i'll have to start looking for parts movements.

Between these and the awful diashocks on more modern seikos I swear they have some sadists working in their antishock engineering departments. At least i've learned to set diashocks with just tweezers.

Edited by Birbdad
Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.




  • Recently Browsing

    • No registered users viewing this page.
  • Topics

  • Posts

    • Got another one today! It took 10 weeks, but finally arrived. Fairly complete but I added the pivot guage. The burnisher and bow came with the tool. The case is a bit rough and the tool pretty dirty, but trying to decide how much I want to restore.
    • OK, so long story short, I'm working my way through Mark's courses using a "Sea-gul ST36" (or ST3600 from some vendors) AKA an ETA 6497 clone. as a practice piece.  I've had it fully appart and cleaned it, and have had it fully back together an "running", but only briefly as my oil hadn't arrived at the time.  In the course of that work, I saw no markings on the movement that would tell me if it was a true Sea-gul or just a clone of their clone of the original ETA movement. Well, fast forward to this weekend, when my oils arrived in my mailbox and I sat down to try my hand at oiling.  Everything was going swimmingly until I got to the shock setting on the top of the balance cock.  I was able to open the lyre spring without issue, but in attempting to swing the open to access the cap jewel and chaton, I apparently accidentally pressed the launch button as I sent the lyre spring into low earth orbit.  Like most things that make into such orbits it came back down at a place not too far from where it started, but of course that also means that it is no longer in the setting. So my task is now to get said spring back into setting.  What I have read so far tells me that I seem to have two options: Another thread here seems to indicate that the spring came out without taking the balance cock apart, therefore it should go back without the need for that procedure.  That seems a bit pie in the sky for me, but the posts in said thread also gave some high level information about how to get the spring back in (putting it at an angle to the channel cut in the cock and canted so that the tabs fit in the slots, followed by some "wiggling" to get it turned around the right direction.)  I've tried this a couple of times, which have lead to more trips to low earth orbit, but with successful recovery of the orbital vehicle after each trip.  This thread also suggests that what I did to cause the initial launch was to push the spring "back" with more pressure on one side than the other, which put it under tension and caused it to deform out the slot either on one side or at the end (where there is apparently no "back stop".) The other option appears to be varying degrees of disassembly of the balance cock.  Some things I've read suggest that the whole shock setting needs to come out, while other threads here suggest that I only need to remove the regulator arm and the arm carrying the balance stud.  After the last trip the spring made, this is seeming like a better option, but I'm super short on details on how to do what needs to be done.  if I am following correctly: I need to loose the balance spring stud screw so the stud is not held in the arm. I need to somehow disengage the balance spring from the regulator (all the regulators I've seen in videos look nothing like what I see on the balance cock I have.)  What I've seen on the interwebs is a couple of "pins" that the spring passes through.  What I see on my assembly is something that looks more like a single pin with a "V" shaped notch cut in the bottom of it.  The spring is secured in that notch with something that I guessed was glue, Posts here suggest that on some of these movements glue is in fact used.  So I'm trying to figure out how to tell, how to soften dissolve it (I'm guessing IPA or acetone) and how to put it back when I'm done (superglue?  UV glue?) With the spring detached from the cock, I've read that the regulator and stud carrier are basically glorified C clamps around the shock setting and that one removes them by slipping a razor blade under one side of each and prizing them up.  I assume that they go back in the reverse manner like another C clamp, but that again is only a guess.  The place I got this information from seemed to leave that bit out. Once I have one or both arms off the shock setting the above mentioned post seemed to indicate that I could just slide the spring back in the slot, though again, I'm interpolating between the lines I read.  The alternative that I've seen demonstrated on high end movements on Youtube is to remove the entire shock setting and to replace the spring from "underneath" rotating the setting so that spring basically falls into place. I'm not anxious to try this method, as I don't have a jeweling tool to put the shock setting back into place.  That not to mention that the professional watch maker who did the demonstration described "fiddly work." So at the end of the day I'm looking for a little guidance on which pathway to follow, or if I've missed something obvious, a new direction to follow.  If this is a repair that just need to wait until my skills improve I'm totally good with that, I can get another of these movements in relatively short order, I just don't want to treat this one as disposable, and I do want to make an honest effort at fixing it and learning from this experience. Thank you in advance for reading my ramblings and for any suggestions that you might have!
    • All the best, family always comes first, and I believe you have made the right call that you mother deserves your full attention. However, when you need a little outside distraction the guys here will always be available for some banter or a heated discussion on lubrication 🤣.
    • Wire for what? if it's steel then only certain types of steel can be hardened ie high carbon steels: "Mild steel doesn't harden very well. It doesn't have enough carbon. Get something like O1, silver steel or if you want to go full watchmaker, then Sandvik 20AP". Source
    • I'm wondering if there's any specific type of wire I should get for hardening? I would assume it doesn't matter as long as the wire doesn't melt before it is at temp. 
×
×
  • Create New...