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![Speedmaster Moonwatch Professional 310.20.42.50.99.001](http://www.cjcharles.com/cdn/shop/files/omega-speedmaster-moonwatch-professional-co-axial-master-chronometer-chronograph-42-mm-3102042509900_{width}x.png?v=1717532126)
MOVEMENT
Calibre: Omega 3861
Manual-winding chronograph movement with Co-Axial escapement. Certified Master Chronometer, approved by METAS, resistant to magnetic fields reaching 15,000gauss. Free-sprung balance with silicon balance spring. Rhodium-plated finish, bridges with straight Geneva waves.
Power reserve: 50 hours
CRYSTAL
Domed, scratch-resistant sapphire crystal with anti-reflective treatment inside
WATER RESISTANCE
5 bar (50 metres / 167 feet)
WATCH CASE & DIAL
Case: Steel - Sedna™ gold
Case Diameter: 42 mm
Between lugs: 20 mm
Lug to lug: 47.50 mm
Thickness: 13.2 mm
Dial Colour: Pink
BRACELET
Material: Steel - Sedna™ gold
Type of Clasp: Fold over clasp with comfort setting
FEATURES
Anti-magnetic, chronograph, chronometer, master chronometer certified, small seconds, tachymeter, transparent case back