I just got a Certina quartz chronograph powered by an ETA 251.264. I popped the back off out of curiosity to have a look. Turns out the battery clip was on backwards.

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This is another installment in a series of watchmaking tips – previous threads can be found here:

https://omegaforums.net/threads/basic-watchmaking-tips-cleaning.56365/#post-696021

https://omegaforums.net/threads/basic-watchmaking-tips-oiling-part-1….

First let me start by acknowledging what a great resource this community is. Gleaned quite a bit while here and wanted to openly express my appreciation to all that contribute.

I find myself replacing a capacitor / battery on my brother’s old Citizen …

Cousins UK lists 4 mainsprings for Cal. 550. Which one is the best for this movement and why?

I am working on a 1950s Vostok watch with a 2414 movement.
The stem has been broken (the crown got smacked on something) and I cannot find the correct replacement, so I bought a stem extender and plan to machine down the old stem, thread it with a scre…

Good day good people, I am in need of a pointer or advice here… I recently landed myself with a chronograph containing a Valjoux 7750 movement, however the condition of the case and straps (which are both gold plated and does not even fit properly)…..

Question for US-based hobbyists and watchmakers. Anything that you are ordering from Cousins or any other foreign suppliers before the De Minimus exemption goes away at the end of this month?

I've expedited ordering some stuff that was sitting in…

Hi Folks, am an amateur watchmaker / tinkerer and am a big fan of destro watches and tool watches and the occasional Explorer.

Am always kicking around destro design ideas in my head but for those of us that like destro watches are there any configura…

Had a Gruen 370 Curvex on the bench today.
knew it would require hairspring work going in, but had not forseen this:

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I have a Scubapro Ti Quartz that I bought in 1991.

I'd like to get all the seals done and pressure tested.

I don't plan to dive anymore but would like to make sure it is waterproof for the next decade or two, I'm old enough that would …