Automatic movement with column-wheel operated chronograph, moonphase indicator and date, introduced in 2016. A luxury version of the 9904 for use in gold & platinum watches, the 9905 features a moonphase indicator at 6:00. The date is now shown through a subdial at 9:00. This movement furthermore is magnetic resistant to over 15,000 gauss, features a silicon SI14 balance spring and a free sprung balance, Omega's 3-level co-axial escapement and 2 serially mounted barrels providing a power reserve of 60 hours.

5 other watches in the library run the Omega 9905.

Omega - 304.63.44.52.01.001 Speedmaster Moonphase Chronograph Master Chronometer Sedna Gold / Black

Ref. 3304.63.44.52.01.001 · 44.25 mm

Omega - 304.93.44.52.99.001 Speedmaster Moonphase Chronograph Master Chronometer Platinum / Silver

Ref. 304.93.44.52.99.001 · 44.25 mm

Omega - 304.63.44.52.02.001 Speedmaster Moonphase Chronograph Master Chronometer Yellow Gold / Silver

Ref. 304.63.44.52.02.001 · 44.25 mm

Omega - 304.93.44.52.99.004 Speedmaster Moonphase Chronograph Master Chronometer Platinum / Silver / Diamond

Ref. 304.93.44.52.99.004 · 44.25 mm