Omega Speedmaster Moonwatch Professional 310.30.42.50.01.004 42 mm Steel Black Dial Watch

A double-plate step dial in black varnished and lacquered finish, contrasted by white varnished and lacquered subdials in rhodium-plated frames, marks out this Speedmaster Moonwatch Professional. OMEGA logo and indexes, Moonwatch-style hands and the dot over 90 on a black ceramic bezel ring complete the 42 mm stainless steel design inspired by the fourth-generation model worn on the Moon.

Sapphire crystal protects both front and caseback, and the polished-brushed stainless steel bracelet closes with a comfort-setting foldover clasp. Visible from the back, the manual-winding Calibre 3861 drives small seconds, 30-minute and 12-hour recorders and the chronograph; it is a METAS-certified Co-Axial Master Chronometer resistant to 15,000 gauss, with a 50-hour power reserve. Water resistance is 50 metres.

Technical specifications

• Brand: OMEGA
• Collection: Speedmaster – Moonwatch Professional
• Model: Speedmaster Moonwatch Professional Co-Axial Master Chronometer Chronograph
• Reference: 310.30.42.50.01.004
• Case: Steel, 42 mm diameter, 13.54 mm thick
• Lug-to-lug: 47.50 mm
• Lug width: 20 mm
• Bezel: Black ceramic 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: Black
• Hands and indexes: OMEGA logo and indexes; Moonwatch-style hands; white subdials in rhodium-plated frames
• 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.): 142 g
• Warranty: 5-year OMEGA international warranty
• Made in: Switzerland
• Manufacturer: OMEGA SA, Biel/Bienne, Switzerland