About
You're about to spend money on a watch you can't fully see.
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Somebody is telling you it's a Seamaster, the dial is original, and the price is fair. Maybe it is. But the movement is behind a caseback, the calibre number is worn, and the three facts that decide what it's worth are the three you can't check from the listing photos.
That's the whole reason this site exists. Not to tell you what I think — to hand you the factory catalogue, applied to your watch, with the page number on every line so you can check it without trusting me at all.
Check the numbers yourself
Every figure on this site comes out of one database, built by photographing and transcribing Omega's own spare-parts catalogues page by page. Here is what's in it today:
Now check one. Take calibre 563. Every free tool on this site will tell you it's 27.90 mm across, 5.00 mm high, 19,800 A/h, 17 jewels, Incabloc, the number marked on the bridge. It will also tell you the barrel bridge inside it is part 550.1001 and the pallet cock is 550.1005 — parts numbered to the 550, not the 563, because the 563 was built on the older calibre.
That is not an opinion and it is not scraped from another website. It is printed in GF 620-3, calibre 563 folio 2. Anyone holding that volume can turn to that folio and see whether I've transcribed it correctly.
And when the catalogues are wrong, the database says so. There are 358 recorded corrections in it — places where two Omega volumes contradict each other, or where the received wisdom among collectors doesn't survive contact with the printed page. Each one is logged with what it corrects and why.
Nothing is stated more confidently than it's known
Every line in a report is graded, so you can tell a checked fact from a judgement:
- Factory sheetPrinted in a catalogue or technical guide I hold. Volume and folio cited. Check it if you like.
- StampingRead off the metal in your own photographs — a bridge mark, a hallmark, a serial.
- CommunitySettled among collectors and consistent across sources, but not traceable to a factory page.
- UnverifiedMy reading from a photograph. Treat it as a lead, not a fact.
If a line graded factory sheet turns out to be wrong, tell me. I'll correct the database and publish the correction.
Who we are
Watch Breaker is a breaker's yard for vintage Omega. We buy vintage Omegas to break down for parts, and we sell those parts.
That's the qualification. A dealer sees the outside of a watch. A collector sees a few dozen of one model. A parts breaker sees the inside of everything that comes through — the good, the married, the redialled and the ruined — because the only way to know what a movement is worth in pieces is to know exactly which calibre it is and what else its parts fit.
In 2015 Omega's parent stopped supplying spare parts to independent watchmakers. That made donor movements the only permanent source of parts for a vintage Omega, and made the old factory catalogues the only reliable map of what fits what. We collect those catalogues, and we've been turning them into the database above.
What this is not
Not Omega. Not an authentication service of record. Not an appraisal. We don't repair watches for customers and we don't take custody of anyone's watch — everything is done from your photographs, and the report says plainly what photographs can't show.
Calibres we load become films on the YouTube channel, every part on screen with its Omega number, and a free game on The Bench, where you can strip and rebuild it yourself.
Watch Breaker is an independent identification specialist and parts dealer and is not affiliated with, endorsed by or connected to Omega SA or the Swatch Group. Omega is a trademark of Omega SA. Reports are identifications from photographs, graded by confidence; not an authentication of record and not an appraisal. Terms.