Jump to content

Recommended Posts

Posted

I recently found an Orvin dive watch at a garage sale for $10. I need to remove the case back so I can service the watch, but I'm having trouble getting it off. I can't tell if it is a screw down or a press on case back. I'm assuming it's a screw down since it's a dive watch and I don't see any indents for me to get a tool to remove a press on back. However, I tried to unscrew it with the rubber ball and a cheap jaxa tool, with no luck. I found someone on eBay selling the same watch (that's where the pictures are from), and I asked them how they got the back off, but they never responded.

Assuming it is a screw down back, how should I get it off? I saw some people on another forum recommending a Bergeon 5700-z with a suction cup attachment, but that is way outside my price range. There is a clone of the 5700 for about $150 although it doesn't have a suction cup. Do you think that would do the trick?

s-l500 (3).jpg

s-l500 (2).jpg

s-l500 (1).jpg

s-l500.jpg

Posted
1 hour ago, MarcusD said:

I recently found an Orvin dive watch at a garage sale for $10. I need to remove the case back so I can service the watch, but I'm having trouble getting it off. I can't tell if it is a screw down or a press on case back. I'm assuming it's a screw down since it's a dive watch and I don't see any indents for me to get a tool to remove a press on back. However, I tried to unscrew it with the rubber ball and a cheap jaxa tool, with no luck. I found someone on eBay selling the same watch (that's where the pictures are from), and I asked them how they got the back off, but they never responded.

Assuming it is a screw down back, how should I get it off? I saw some people on another forum recommending a Bergeon 5700-z with a suction cup attachment, but that is way outside my price range. There is a clone of the 5700 for about $150 although it doesn't have a suction cup. Do you think that would do the trick?

s-l500 (3).jpg

s-l500 (2).jpg

s-l500 (1).jpg

s-l500.jpg

Maybe a caseback spanner for this ?. I use one of these instead matey , not had a caseback beat me yet with it 

16515186260272398640527290305853.jpg

2 minutes ago, Neverenoughwatches said:

Maybe a caseback spanner for this ?. I use one of these instead matey , not had a caseback beat me yet with it 

16515186260272398640527290305853.jpg

Are you sure the back comes off. Check throughly that there is a seam. I had a Lucerne,  Swiss make that had a back very similar to this. It was a false back and came out of the front. Maybe different to the others you've seen 🤷‍♂️

Posted (edited)

You need one of these , or similar.

On second thought, you need more than just the back opener if you are a beginner.  You need something to hold the movement with while twisting the back wrench.  Adjust very carefully so that you have good contact on all three claws.  Remove the band, mount the watch in the vise.  Then adjust the wrench to fit snugly, press down and turn counter clockwise.  This kit should get you started.

2022-05-02 14_47_56-Watch OPENER Tool Back Band Case Repair Kit Screw Cover Remover & 1 LR44 BATTERY.png

kit.png

BTW... I have this watch in my collection.

Edited by LittleWatchShop
Posted
9 minutes ago, LittleWatchShop said:

You need one of these , or similar.

On second thought, you need more than just the back opener if you are a beginner.  You need something to hold the movement with while twisting the back wrench.  Adjust very carefully so that you have good contact on all three claws.  Remove the band, mount the watch in the vise.  Then adjust the wrench to fit snugly, press down and turn counter clockwise.  This kit should get you started.

2022-05-02 14_47_56-Watch OPENER Tool Back Band Case Repair Kit Screw Cover Remover & 1 LR44 BATTERY.png

kit.png

BTW... I have this watch in 

What he really needs are hands of steel with the grip of a silverback. Lol

16515216761982177855771605411073.jpg

Posted

If This truely a screw down back try the super glue method.  Glue a lange nut on the back and let it dry then take a spanner and turn the back off. The nut is easilly removed using acetone (nail varnish remover) and leaves no marks.

  • Like 2
Posted
33 minutes ago, watchweasol said:

If This truely a screw down back try the super glue method.  Glue a lange nut on the back and let it dry then take a spanner and turn the back off. The nut is easilly removed using acetone (nail varnish remover) and leaves no marks.

YES...this is an excellent method!!  I think I learned it from @watchweasoland have successfully used it multiple times. In some respects better than a wrench.  Invite @Neverenoughwatchesover for a beer and use his hand to hold the watch.

  • Like 1
Posted
1 minute ago, LittleWatchShop said:

YES...this is an excellent method!!  I think I learned it from @watchweasoland have successfully used it multiple times. In some respects better than a wrench.  Invite @Neverenoughwatchesover for a beer and use his hand to hold the watch.

Haha. Dont drink, but I can eat for Great Britain. 

1 hour ago, Neverenoughwatches said:

What he really needs are hands of steel with the grip of a silverback. Lol

16515216761982177855771605411073.jpg

If there are any  palm readers out there, how long have I got left please. 

Posted
19 hours ago, watchweasol said:

If This truely a screw down back try the super glue method.  Glue a lange nut on the back and let it dry then take a spanner and turn the back off. The nut is easilly removed using acetone (nail varnish remover) and leaves no marks.

Ok, I'll give that a try and report back with my results. Thanks for the suggestion.

Posted
On 5/2/2022 at 3:31 PM, watchweasol said:

If This truely a screw down back try the super glue method.  Glue a lange nut on the back and let it dry then take a spanner and turn the back off. The nut is easilly removed using acetone (nail varnish remover) and leaves no marks.

I finally had time to try this out and it worked great! Thanks for the help!

  • Like 3
  • Recently Browsing

    • No registered users viewing this page.
  • Topics

  • Posts

    • Believe the relume (not a fan) was done a long time after the damage. 
    • I can only think of some chemical reaction to reluming
    • I have a little milling attachment for my WW lathe, but very rarely use it and not for wheel and pinion cutting. For that I use a small Sixis 101 milling machine. I normally do direct dividing, but sometimes have to do an odd count and use the universal index which also fits on the Sixis.   Back in the day when I didn't have a mill, I would cut gearing on my Schaublin 102. It has a universal dividing attachment which fits the back of the spindle. Both it and the one for the Sixis are 60:1 ratio, and with the set of 4  index plates I can do almost any division. When I've had to do a strange high count prime number, I print a disc with the needed division and just place the plunger on the dot. Any position error is reduced by a factor of 60 so still plenty accurate.   The machines are a mess in the pics as I'm in the process of making a batch of barrels for a wristwatch 🙃.   This is the Sixis. The head can also be placed vertically, as can the dividing spindle.   Dividing plates. The smaller ones fit another dividing spindle.   Universal divider for the Sixis. I put it together with parts from an odd Sixis spindle that takes w20 collets, like the Schaublin 102, and a dividing attachment from a Schaublin mill.     The dividing attachment for the 102. The gear fits in place of the handwheel at the back of the headstock.   And the little milling attachment for the WW lathe. I just set it on the slide rest to illustrate the size, you can see from the dust on it it really doesn't get used much. I think only when I change bearing in the head, to kiss the collet head seat (grinding wheel still in the milling attachment).
    • I read a lot about the quality (or lack thereof) of Seiko's 4R, 6R, 8L  movements...or more specifically the lack of regulation from the factory. Especially when compared to similar priced manufactures using SW200's or ETA's. I thought I'd ask those more in the know, do the 4R's and 6R's deserve their bad reputation, is it fairly easy for someone with minimal skills (or better yet a trained watch mechanic) to dial in these movements to a more acceptable performance.    For background I spent more on a 1861 Speedy years ago, expecting that the advertised 0-15s/d  would probably perform more like 5-7s/d. In reality it's been closed to 2-4s/d. 
×
×
  • Create New...