Leaderboard

So I played a bit in Solidworks, and this is what I got. A friend of mine helped me with the 3D printing. sup_2.STL mic 2.STL pesa.STL sup_1.STL the editables: mic 2.SLDPRT pesa.SLDPRT sup_1.SLDPRT sup_2.SLDPRT ansamblu2.SLDASM

They also made timing washers for bracelet size watches as well but it sounds like a much larger problem than just weight.

Generally speaking balance wheels and hairsprings are tuned (vibrated) as a set and switching them around will give poor results. How fast is "too fast"? It could be the wheel you have is slightly lighter than the original and simply needs some weight added (timing washers), but that's only if we're talking a few minutes a day, any more than that and you're looking at putting in heavier screws. I wouldn't suggest adding MORE screws as this could affect the poise, unless you just want to test the theory.

I'll take a WAG and say that "annulaire" ("annual" root?) denotes a movement that has a date function. It's just a guess though.

"franken" is a myth. just concentrate on enjoying watch repair.

I'm not a Seiko expert but if you do an ebay search for item 132505656524 then this says that a 6530-5420 crown will also fit a whole bunch of other Seiko case references ... including your 6530-5090. Assuming you're actually looking for a 'yellow' crown then, as rogart63 suggests, CousinsUK is a good place to start and indeed they list a 6530-5420 gold plated crown for a Seiko. An alternative source could be http://www.nwcsupplies.com. If you navigate to Named Crowns -> Seiko Crowns you'll see they have 430 listed! It's not the most user friendly website so I'll let you see if they have what you need.

I don't know much about that regulator other than it being called an "Incastar". I saw it in Jendritski's "The Swiss Watch Repairer's Manual". I found info here on WRT, but nothing on servicing the balance, just using the regulator. Incastar

Well among my other interests, motorcycles probably rank as high as horology and recently I had occasion to use some horological knowledge on my bike. Problem was the sight glass for the 2-stroke oil was well knackered It looked like it had been subjected to heat at some point. I managed to source a replacement but the closest I could find was a similar diameter but with different height. and when installed it sat a few mm lower (in the pic below the window should sit flush with the surround). Well I measured the diameter and found it was 28mm. I pulled out a 282 crystal and inserted it using the claw. a few taps and its now flush. Here it is in place with the outer cover in position. Its not as clear as a correct original would be and your eyes need to be exactly level with the window when checking but it will do for an occasional bike which doesn't see much use. another aspect of watchmaking was this caseback opener which I attempted to use to remove the locking ring.. unsuccessfully. This was eventually removed by the trusty hammer and screwdriver. Anyone else used watch skills/tools on other hobbies? Anilv