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Speedmaster Moonphase 44.25 mm
304.63.44.52.02.001
This 44.25 mm model features an opaline silvery dial, with diamond polished 18K yellow gold indexes and hands. At 6 o'clock is the accurate Moonphase indication, which features an 18K yellow gold hand-engraved moon disc, filled with enamel and sprinkled with silver powder to represent the stars.
Cased in 18K yellow gold and circled with a black ceramic bezel ring with Ceragold™ tachymeter scale , this watch is presented on a black leather strap with a polished-brushed 18K yellow gold foldover clasp.
Powering the timepiece is the OMEGA Co-Axial Master Chronometer 9905, which has been officially certified by METAS.
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Speedmaster Moonphase 44.25 mm
304.63.44.52.02.001
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Features
Features
Anti-magnetic : The movement is unaffected by exposure to strong magnetic fields, even those greater than 1.5 tesla (15,000 gauss).
Chronograph : The chronograph function is a mechanism for measuring time intervals. A chronograph watch can therefore be used to time events while displaying the time like any traditional watch.
Chronometer : Label given to a watch which has been successfully tested by an accredited and independent laboratory in order to receive a certificate compliant with the chronometer ISO 3159 standard.
Date : The day of the month, displayed in a window on a watch dial at the 3 or 6 o’clock position, or within a subdial at 9 o’clock.
Master Chronometer Certified : Guaranteeing the Swiss industry’s highest standard of precision, performance and magnetic-resistance, as set by the Swiss Federal Institute of Metrology (METAS).
Moonphase : A moonphase watch uses a function which tracks the phases of the moon. One lunar cycle is 29 days, 12 hours, 44 minutes and 2.8 seconds and includes four phases: new moon, first quarter, full moon, last quarter.
Small seconds : A hand on a sub-dial which tracks seconds typically it completes a full rotation in one minute.
Tachymeter : A tachymeter watch has a function for measuring speed. It is a chronograph with a graduated dial on which speed can be read in kilometres per hour based on a 1000 metre distance.
Transparent caseback : A transparent caseback – frequently made of sapphire – makes it possible to see the movement inside the watch.
Technical Data
Reference : 304.63.44.52.02.001
Between lugs : 21 mm
Lug‑to‑lug : 50.00 mm
Thickness : 17.05 mm
Case diameter : 44.25 mm
Case : Yellow gold
Dial colour : Silver
Crystal : Scratch‑resistant sapphire crystal with anti‑reflective treatment on both sides
Water resistance : 10 bar (100 metres / 330 feet)
Watch size : Gents
Total product weight (approx.) : 166 g
Calibre : Omega 9905
Movement type : Self winding
Power reserve : 60 hours
Strap
Strap color : Black
Strap type : Leather strap
Strap surface : Alligator leather
Strap underside : Non‑grained calf leather
Buckle type : Foldover clasp
Buckle material : Yellow gold

