Tip on Aligning Roller Table Impulse Jewel when Staking
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Could you fit a sapphire crystal? My 'daily wearer' Breitling Aerospace is 22 years old and there isn't a mark on the sapphire crystal. -
Oh that's neat. I typically use a thin strap of rodico laid over the pallet fork to affix it to the upper plate but it can be hard to retrieve sometimes. And as I did more research, I may have just found your own earlier explanation: https://learntimeonline.com/forums/topic/potence-clip-for-full-plate-p-ws/ -
I've been on a ESA 9154 kick lately with this being the latest. A funkalicious 1970's Elgin Electronic with a brown and orange earth toned dial in a big old hunk of steel. Just like the last one this one runs from about -2 to +2 in 5 positions as it seems to be easy to dial these 9154's in. -
By RichardHarris123 · Posted
I wonder what the theoretical size limit is for both a quartz and mechanical movement? -
By HectorLooi · Posted
I'm currently working on a Citizen 4520 movement. This has to be the smallest and weirdest quartz movement I've ever worked on. Firstly, it's small. Really small. Here's a picture of it next to a LR44 battery for comparison. And unlike conventional quartz movements, the construction of this movement is really weird. The moment I took off the top plate, the rotor and 1st wheel are exposed. The PCB is right on the bottom plate. There are no dial side components and cover plates. Everything goes in from the rear. Not sure if I'm able to fix this watch. The old battery leaked and there are battery juice crystals everywhere. And there is a 1 uA constant leakage current, which will drain the tiny battery in no time. But at least there's still a pulse and the rotor twitches.
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