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Picked this up in a lot of 3 total. It was $10 U.S. for all. There was a Bulova 10AX movement that I needed for parts, a Timex Electronic (which I'm working on) and this: a nice little Orient Crystal. It's a nice, smooth-running automatic with day & date. Thank heaven it keeps such excellent time, because it is so quiet I can't hear it ticking at all. I haven't had it on a timegrapher yet but it's been running for a few days now and I can't tell if it's off even by a second. I will always prefer pocket watches, but this wrist watch can be one of my exceptions.

I finally had time and the spares to fix my Tudor project. It is the first watch I have ever done that had major work needed. I would like to thank everyone on this forum for their dedicated posts I scrolled through many to update my knowledge for this one. From using vinigar to desolve the broken stem from the crown to the scary KIF springs that where very intimidating to me as I had never seen these before. This one has been rebuild without even dropping one screw as I took on Nickelsilvers tweezers advice.

Post good pictures back and top (with dial removed) to help others help you.

Hi attached is a lot of files apertaining to the seiko casing guide information. 03. Casing Guide seiko.pdf Seiko Casing Parts List (1977) IV. Cal. 3302 to 5245-6010.pdf Seiko Casing Parts List (1977) V. Cal. 5245-7000 to 5740-8010.pdf Seiko Casing Parts List (1977) VI. Cal. 6100-8000 to 6245-9001.pdf Seiko Casing Parts List (1977) VII. Cal. 6306-5000 to 8346-9020.pdf Seiko Casing Parts List (1977) I. Notes & Index.pdf Seiko Casing Parts List (1977) II. Watches Japan Market Only (1).pdf Seiko Casing Parts List (1977) III. Cal. 0702-0723.pdf

Yep, like so many other things about movements! I sure would like to hear your thoughts on this @JohnR725!

Ive been having exactly the same thoughts VW when i found out that synthetic oils evaporate as opposed to congeal like mineral oils. So effectively letting the pivots run dry instead of causing them to slow down and stop through oil viscosity change. So much so i was thinking of going back to mineral oils. I think John is the man to ask about this one. I very nearly bought the quartz model to have a more of a beater watch for when I'm working. But the Ronda 515 inside priced at under a tenner for a replacement really put me off. I was so disappointed at Yema that contacted them and ended up having a good old rant about it

It's the Dumont #2 dumoxel.

Hiya mate. I understand your dilemma completely, this is your love of quality and gorgeous watches drawing you in. I've noticed your posts and spoke to you often over this past couple of months and know how you feel about beautiful timepieces. Also your curiosity is wanting you to get hands on to further explore inside. Are you feeling a little nervous that you may effect its performance ? Haha mate if all this is true then you are just like me. Personally i would leave it be for the time being, its obviously in no desperate need for a service. I would want to give it some wrist time and I'm sure it wants to be worn first ( before you abuse it, only joking ).

This is a $1000 + watch, certainly superior quality to its Asian Cousins, I think these impressive numbers tell more about the grade of its movement and not how long the lubricants will last.

Don’t do it! I wouldn’t service that especially since the performance looks so good, that’s just asking for trouble. Maybe in a couple of years time…

I I have one. I have to be honest I can't remember where it came from and it is totally unmarked so I can't tell you much about it. It has a tapered hole that accepts the Seitz reamers, is 4.7mm diameter, and fits my MKS staking frame perfectly. So they do exist.

Well done Tony on your end result and actually having the bottle to work on a quality watch . Nice looking Tudor

Wow! I'll have to find that thread of @nickelsilver's Congrats Tony!

Welcome. This is a good move. Essential if you want to lessen your watch repairers bill. Money saved can buy you more watches

Welcome to the forum. Is that your name at the bottom of your post? Petter or Peter?

Welcome to the forum. You have to follow up a post like that with lots of photos.

Thank you for your introduction and welcome to this friendly forum. We all look forward to your contributions and continued involvement.

Hello and welcome.

Hello and welcome to the forum.

Welcome to the forum Ash. Envy the names of the pocket watches you have been able to get. Very little available here in Australia. They might be around and it is just possible that people don't know or care enough to move them on.

$5 each at a yard sale today. The Omega has a 625 in it. Both are running.

true that.. I've serviced 3 of them so far and only 1 was running very good with 300-ish amplitude, 0.0ms BE and -5 to +7 deviation. I've ordered a automatic oiler now because I got sick of applying the oil to the endstone, placing the thing back on top and inspecting it under the microscope only to find the oil spreaded out again to the sides... After approx, 12 times you seem to care less about the huge price of an automatic oiler haha. I'll clean both jewels again and give them an epilame treatment, inspec the pivots of the balance and clean and inspect the whole escapement again.

I gave up on this one. I didn't notice that the seller was in Ukraine when I made the purchase and the watch doesn't appear to have left Ukraine. I'm guessing it isn't going to. It would have been a nice addition.