Speedmaster Moonphase 44.25 mm, steel on leather strap 304.33.44.52.01.001 RONDA 762E.2 2 hands quartz this watch is built for this watch is built for both style and endurance dateCaliber: 11 1 2'''Movement Description: Swiss automatic Powermatic 80 movement with patented silicon balance spring and up to 80 hour power reserveDial Color: SilverHour Markers: IndexesHands: Luminescent handsSpecificities: See through case back which has been officially certified by METAS ) 119 g Calibre Omega 9904 Movement type Self winding Power reserve 60 hours Strap color Black Strap type Leather strap Strap surface Alligator leather Strap underside Non‑grained calf leather Buckle type Foldover clasp Buckle material Stainless steel