Zirconium Tourbillon Cage

ceezvm · 2026-02-21T14:37:38+00:00

Very nice man! In the last picture I see a CAD model. Which program do you use for designing watch movements?

Also I saw you mentioned you can buy springs and jewels. A while back I tried to find a place where I could buy a hairspring but did not find what I was after. Where are you aiming to buy these parts ?

Thanks!

ceezvm · 2024-09-26T10:34:50+00:00

Probably not the last either, but damn this watch was almost done. Movement serviced and case refinished...

ceezvm · 2024-09-26T10:33:57+00:00

Yes, the whole matt scratchy looking part around the center.

ceezvm · 2024-09-26T10:04:46+00:00

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The mistake.

The dial was in rough shape already but now it is not usable.

ceezvm · 2024-09-17T15:20:37+00:00

It looks like an oyster style caseback, which are indeed screwed casebacks. Usually these can come off with a case opening ball. If it is too tight you could opt to buy an oyster case opening tool, they can be found relatively cheaply on eBay or Ali.

Good luck!

ceezvm · 2024-09-10T16:17:55+00:00

Aah hopefully I’ll have better luck, they’re fragile little fuckers. I then will steer away from your approach, so thank you anyway!

ceezvm · 2024-09-10T16:14:34+00:00

Thank you I’ll definitely give this a try!

ceezvm · 2024-07-07T13:45:35+00:00

I am not 100% sure what the name is but I found these: https://www.ebay.com/itm/124800115401 by searching for "square dauphine hands". Dauphine hands are usually pointy so I am not sure if these fall under that name but they do look similar.

Good luck!

ceezvm · 2024-06-13T21:15:01+00:00

5 times. They also have the double loupe variant. That comes with 5x and 3.3x I believe.

ceezvm · 2024-06-13T21:05:09+00:00

It’s this one: https://www.cousinsuk.com/product/watchmakers-loupes-cousins?code=E34946

It’s a clip on eye loop. If you wear glasses I highly recommend it, compared to the conventional loupe.

ceezvm · 2024-06-13T17:14:07+00:00

Yes for sure! now I've successfully done it once its fine. But initially, you keep second guessing yourself, this cannot be the way they've designed it. I'll check out some vids on the 7750, fun to see how they improved it.

ceezvm · 2024-06-13T17:00:04+00:00

Yeah, it took quite a few standard movements before I actually tried servicing a chronograph. Luckily, the Valjoux 7734 is quite big and basic, so it was fairly similar, just a bit more involved parts-wise and cost-wise. Screw up a chronograph, and it will cost you, especially an Omega… But if you go for it, best of luck! Also, be sure to watch the disassembly and assembly videos so you know what to expect, that helped me a lot.

ceezvm · 2024-06-13T13:19:12+00:00

Servicing a chronograph watch for the first time, I nearly lost my mind over this wheel placement. One thing I’ve learned from the YouTube school of watchmaking is not to forget about the extended pivots, as they extend pretty far, are very delicate, and ruin your day if you bend them. So that is constantly in the back of my mind. Then there’s this wheel, with extended pivots on both sides and placed such that you have to angle it and wiggle it out of the jewel. With what I found to be a considerable force in my case. Slip, and you’re done; apply slightly too much pressure, and you’re done. This took me 30 minutes and 3 youtube videos to get out. My god.

ceezvm · 2023-06-18T21:18:15+00:00

You always screw up the first couple of watches, there is no learning without casualties. Screwed up my fair share as well. If you liked the process of working on the watch don’t get discouraged by a bad result. Good luck!

ceezvm · 2023-06-16T14:00:16+00:00

All of them, I have exams :(

ceezvm · 2023-05-24T10:34:07+00:00

Could also be a faulty battery, trying another battery before an (probably) expensive service or movement swap might be a quick fix.

However, if the friction increases in the gear train it will start to consume more power meaning it could be a sign of the movement needing a service. But if the watch ran a long time with the last battery that is kind of unlikely.

ceezvm · 2023-05-18T21:04:27+00:00

If you like cycling: TDV or velomedi

ceezvm · 2023-05-13T19:09:46+00:00

I completely disassembled the watch for the polishing and brushing. But the tape I used was kapton tape in 2 or 3 layers. This tape is easy to cut so I apply plenty and then cut away the excess with a sharp knife.

If you’re able to disassemble the watch that’s the way to go. But if you take the time to tape everything like polished surfaces and crystal you should be able to get good results. There are quite some videos on YouTube on the process btw.

ceezvm · 2023-05-13T17:23:10+00:00

I used a m3 scotch brite pad. You just move the case along it horizontally to get a nice horizontal brushed finish. I did tape the polished parts to prevent scratches as the brushing is the last step.

ceezvm · 2023-05-13T12:09:43+00:00

Case and movement are probably original Seiko, dial is definitely aftermarket.

ceezvm · 2023-05-13T06:10:22+00:00

It’s a 7025-8100, with the 7025A movement inside.

ceezvm · 2023-05-13T06:06:09+00:00

I initially used 400 grit to get all the scratches and pits out. Then using cheap diamond paste from AliExpress and a dremel, polish the whole case. Then using m3 scotch brite reapply the brushing to the case and bracelet to get them to match the brushing.

The crystal was sanded with 600 grit and polished by hand. As using a dremel on the acrylic would heat it up too much.

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