Speedmaster Moonphase Co‑Axial Master Chronometer Chronograph 43 mm 304.30.43.52.01.001 Features_Perpetual Calendar Both straps are fitted with

Both straps are fitted with the QuickSwitch interchangeable system

GLASS: sapphire crystal glass

Detachable enhancer with 12 cabochon sapphires totaling 64

Case width: 43

BEZEL: Brushed titanium

Speedmaster Moonphase Co‑Axial Master Chronometer Chronograph 43 mm 304.30.43.52.01.001 Features_Perpetual Calendar Both straps are fitted withMOVEMENT Calibre: OMEGA 9914 Manual winding chronograph with OMEGA column wheel and Co Axial escapement. Certified Master Chronometer, approved by METAS, resistant to magnetic fields up to 15,000 Gauss. Silicon balance spring, 2 barrels mounted in series. Central hour minute hands, small seconds hand, and date indication by hand at 9 oclock. 12 hour and 60minute recorders at 3 oclock. Moonphase indication at 6 oclock. Special finish with rhodium