Omega Speedmaster Moonwatch Professional 310.30.42.50.04.001 42 mm Steel White Dial Watch for Men

A white lacquered step dial brings bright contrast to this 42 mm Speedmaster Moonwatch Professional in stainless steel. Applied OMEGA logo and indexes and Moonwatch-style hands stand out against it, while the black anodised aluminium bezel ring carries the dot over 90, all within the asymmetrical fourth-generation case worn on the Moon.

Presented on a polished-brushed steel bracelet with comfort-setting foldover clasp, it has sapphire crystal on the front and caseback. Through the back, the manual-winding Calibre 3861 can be seen, driving small seconds, 30-minute and 12-hour recorders and the chronograph; it is a Co-Axial Master Chronometer approved by METAS, resistant to 15,000 gauss, with a 50-hour power reserve.

Technical specifications

• Brand: OMEGA
• Collection: Speedmaster – Moonwatch Professional
• Model: Speedmaster Moonwatch Professional Co-Axial Master Chronometer Chronograph
• Reference: 310.30.42.50.04.001
• Case: Steel, 42 mm diameter, 13.18 mm thick
• Lug-to-lug: 47.50 mm
• Lug width: 20 mm
• Bezel: Black anodised aluminium bezel ring with dot over 90
• Crystal: Scratch-resistant sapphire crystal with anti-reflective treatment inside
• Caseback: Sapphire crystal caseback
• Water resistance: 5 bar (50 metres / 165 feet)
• Dial: White
• Hands and indexes: Applied OMEGA logo and indexes; Moonwatch-style hands
• Functions: Hours, Minutes, Small seconds, Chronograph
• Movement: OMEGA 3861, manual-winding with Co-Axial escapement
• Certification: Co-Axial Master Chronometer, certified by METAS (magnetic resistance to 15,000 gauss)
• Power reserve: 50 hours
• Frequency: 3 Hz
• Bracelet: Steel
• Clasp: Foldover clasp with comfort setting
• Weight (approx.): 140 g
• Warranty: 5-year OMEGA international warranty
• Made in: Switzerland
• Manufacturer: OMEGA SA, Biel/Bienne, Switzerland