
Omega
Speedmaster Moonphase Master Chronometer
304.33.44.52.03.001
The Speedmaster reimagined with a moonphase complication and Master Chronometer precision.
An estimate from current market data — not an offer. Your actual value depends on condition, completeness, and authentication.
Get an instant offerFree insured shipping. Paid within 48 hours of inspection.
Overview
The Omega Speedmaster Moonphase Master Chronometer is a 44.25 mm stainless steel chronograph that unites the Speedmaster's storied motorsport and space heritage with a classical moonphase complication. Its deep blue dial lends the piece a celestial character well suited to the lunar display. Powering the watch is Omega's Calibre 9904, a movement certified to Master Chronometer standards by the Swiss Federal Institute of Metrology (METAS).
History
Introduced in 2016, the Speedmaster Moonphase Master Chronometer represented a significant evolution of the Speedmaster line by adding both a moonphase indicator and METAS-certified Master Chronometer status — a dual distinction uncommon in the broader chronograph category. The reference sits within a broader Omega initiative, begun in the mid-2010s, to bring its most important calibres through the rigorous METAS certification protocol, which tests for magnetic resistance up to 15,000 gauss alongside traditional chronometric performance. Among collectors, the model is appreciated for bridging the Speedmaster's tool-watch identity with the decorative tradition of grand complication dials.
Notable points
- Calibre 9904 is a Co-Axial Master Chronometer movement certified by METAS to resist magnetic fields of at least 15,000 gauss.
- The 44.25 mm stainless steel case maintains the broad, legible proportions associated with the Speedmaster family.
- A moonphase complication — relatively rare in the Speedmaster line — is integrated alongside the chronograph function.
- The blue dial evokes the night sky, providing a thematically coherent backdrop for the lunar display.
- Master Chronometer certification requires passing eight tests, covering precision, magnetic resistance, and water resistance, among other criteria.
Specifications
Related watches





