Try a rubber glove balled up...or a ball of duct tape. That might work. Those are common caseback tools. I have a cheap set of caseback tools for rolexes, but for the 29.5mm die (the one for most models talked about here), I have the Bergeon tool. The die is about $18...not much. You can stick a pencil or chopstick in to use as arms if you wanted instead of buying the full kit.
I would talk with your cousin. They might find it to be an interesting exercise.
There was talk of either Andrew or Josh I believe working on a project for a 1655. We'll see what comes of it. I've been tempted to buy a gen one for awhile...but always get cold feet given the price tag on them.
A decent rep would be great with the proper case thickness. Zig can work the dial with his usual magic, Omega hands. Slick!!
There have been some tutorials on RWG on replacing the tube. It will take a bit of work to search for them. If it's for a 6263, do you have the A7750 version or the Seagull manual wind?
Not that it makes a difference really...but the crown you can likely source from the Bay. Many upgrade to a gen crown and aftermarket tube. The crown might be about $50, and the tube <$10. OR...just stick with the existing crown and get an aftermarket tube for it.
I've only done a gen crown/tube replacement for Omegas, and those part numbers are easy to find. Possibly send a PM to Freddy333 or Ubiquitous and ask them if they happen to know the parts to order?
I know Josh won't have the case tubes...not something they sell. The crown possibly...but likely your crown is fine...and just the tube threads stripped.
It requires a bit of watch work. Generally, a new tube if the crown is ok...or a new crown and tube if you want to switch to a different crown that matches the tube.
You'll need some specialized tools (either a tube press, taps, etc).
OH...it's fairly common. I've had to replace them on my gens. The tubes are cheap...only a few bucks, and the labour isn't much. Any watch person should be able to do it.
From what I've read, the ST19 is a straight copy of the Venus 175 as they bought the machinery from the Russians to make it.
ST19 Info
"The ST1901 movement is nearly identical to the Venus 175 - parts are interchangeable. But the movement is not a copy or clone. It actually is the Venus 175, because Seagull has purchased the tooling from Venus in the early 1960ies. Seagull did copy the tooling to be able to produce at 2 locations. Differences or improvements to the Venus 175 are the increased beat (the Venus only had 18000 bph) and an added incabloc style shock absorber."
ST1901
ST1902
http://www.tjseagull.com/wkt/19/1902w.pdf (link to pdf diagram of ST1902
I don't know about any coupler thing. The crown threads on the stem like any other...but there is a spring section above the threaded tube for the stem (labelled "SPINS" in the pic above that kind of acts like a car shock around the part labelled "secure"). I think this is to allow for some variance to catch the threaded tube for screwing the crown in.
Hi folks,
Does any tech info like the A7750 document set exist for the Seagull ST19 / Venus 175 / Lemania manual wind movement?
I noticed the chrono function on one of my watches with this movement isn't working. The watch is running fine, but the chrono is not. The movement has not been disassembled, but I would like to figure out how this thing works so I can do an assessment.
Would it operate like the chrono on an ETA / Valjoux / A7750 movement??
Thanks for any help.
Ask Kenberg in the Bergies section of the forum (under accessories or something like that from the main page).
He has a bunch of jewellery and necklaces and stuff that are quite nice. If you PM him, he can likely find other stuff of interest.