Five free instruments for the vintage Speedmaster collector: date a movement from its serial, identify a dial from five questions, run NASA’s 1964 qualification gauntlet, learn the four Moonwatch calibres, and meet the Speedmaster on screen. No account, no cost — everything runs in your browser and your data never leaves your device.

Built to be checked

Every tool on this page is an estimator or a starting point — never an authority. Serial tables are compiled from widely published collector references (Omega itself publishes no official table), dial identification can’t see a redial through your screen, and nothing here replaces a watchmaker’s loupe or an Extract from the Archives. The collector’s rule stands: verify everything, trust the watch in hand.