About Omega
Founded in La Chaux-de-Fonds in 1848, later Biel/Bienne, Omega is best known for the Speedmaster Professional, Seamaster 300, Seamaster Diver 300M, Constellation and De Ville. Omega's modern Co-Axial Master Chronometer calibres are certified to withstand 15,000 gauss and are tested by METAS as complete watches rather than as loose movements — a stricter standard than movement-only certification. Understanding what a manufacture actually does in-house matters when you buy pre-owned, because it determines how easy the watch will be to service in ten years' time and which parts can still be replaced with factory components.
What to check on a pre-owned Omega
On vintage Speedmasters, the caseback, bezel insert font and hand set are the details that separate a correct watch from a parts watch. On modern Seamasters, confirm the helium escape valve operates and that the bracelet has not stretched past its adjustment range. We do all of this before a watch is listed and publish what we find, including the flaws — see Authentication for the full inspection process and our condition grades.
Omega on the secondary market
Omega offers the widest gap between watchmaking quality and market price of any major brand. Pre-owned Speedmasters and Seamasters typically cost a fraction of comparable references from higher-hype houses while sharing the same finishing standards. Prices move with supply, so we re-price inventory against recent comparable sales rather than list price. If you are considering selling or trading a Omega, see Sell Your Watch.
How we authenticate every watch
Authentication is not a paperwork exercise. We remove the case-back and verify the calibre against the reference; we check dial printing, hand sets and lume ageing under magnification; we measure timing in multiple positions; we confirm bracelet stamping, end-link fit and clasp codes; and we pressure-test sports references with intact cases. Any watch that fails is returned to its consignor rather than discounted onto the site. Our authenticity guarantee has no time limit.
Condition grading in plain language
We publish one of five grades — unworn, excellent, very good, good, or project — and back each with photographs of the actual watch. Unworn means factory condition with a full set. Excellent means light hairlines only and sharp case geometry. Very good means normal wear with every mark disclosed. Good means visible wear and possibly a previous polish. Project means clearly stated faults, priced accordingly and sold as-is.
Shipping, returns and warranty
Every watch ships fully insured for its declared value with signature required, in discreet packaging, at no cost to you. You have 14 days from delivery to return any watch for a full refund, for any reason, using a prepaid insured label. Mechanical watches carry a 12-month warranty on the movement. Details are on Shipping & Delivery, Returns & Refunds and Warranty.
Related collections
If you are cross-shopping, browse our chronographs, dive watches, GMT and travel watches and dress and classic watches, or see every maker we carry on the brands page.
Questions before you buy
Ask for extra photographs, a movement shot, a wrist shot, or the full timegrapher readout — we send all of them on request. Email sales@chrono24watches.st with the listing URL and we will reply within one business day. If the exact Omega reference you want is not in stock, tell us the reference, target condition and budget and we will contact you when a matching watch clears authentication.
