Production Date Query Moonwatch calibers 321, 861 and 1861 only

It's simple. Enter a movement number and 'Submit'.

The results of this page are intended to assist when looking to purchase a watch you are unsure of, and can not replace or substitute Omega's 'Extract of the Archive' for your Speedmaster. For the ultimate information on your Speedmaster, request an 'Extract of the Archive' here.

'Extract Prediction' uses actual data to predict as closely as possible the production date of the queried serial number. There is no guaranteed accuracy, but mostly it's very close.

'Moonwatch Only Tables' uses the scientific data provided via their website.

'Speedmaster101 pricing' uses the data provided via the Speedmaster101 website.

All of this information allows you to quickly verify the legitimacy of a questionable watch, at least for the known observable characteristics.

The authors of 'Moonwatch Only' and 'Speedmaster101' have kindly granted permission to use their data here. Many thanks Gentlemen! Standing on the shoulders of giants...

Current data limits query on Movement Numbers from 15996671 to 48394659. There are currently 433 extracts in use.

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