OMEGA SPEEDMASTER MOONWATCH PROFESSIONAL 42MM STEEL ON STEEL Ref. 310.30.42.50.04.001

The Speedmaster Moonwatch is one of the world's most iconic timepieces. Having been a part of all six moon landings, the legendary chronograph is an impressive representation of the brand's adventurous pioneering spirit.

Presented on a polished-brushed bracelet, this 42 mm Moonwatch in stainless steel features sapphire crystal glass on the front as well as on the caseback. Inspired by the 4th generation Speedmaster style worn on the moon, it also includes an asymmetrical case, a white lacquered step dial with applied OMEGA logo and indexes, Moonwatch style hands, and the famous dot over 90 on the black anodised aluminium bezel ring.

The watch is driven by the OMEGA Co-Axial Master Chronometer Calibre 3861, which powers the small seconds sub-dial, 30-minute recorder and 12-hour recorder, along with the central chronograph function.

Features: 
Anti-magnetic
Chronograph
Chronometer
Master Chronometer Certified
Small seconds
Tachymeter
Transparent caseback

Data: 
Reference
310.30.42.50.04.001
Between lugs Open Case Measurement Modal
20 mm
Lug‑to‑lug Open Case Measurement Modal
47.5 mm
Thickness Open Case Measurement Modal
13.2 mm
Case diameter Open Case Measurement Modal
42 mm
Case
Steel
Dial colour
White
Crystal
Domed, scratch‑resistant sapphire crystal with anti‑reflective treatment inside
Water resistance
5 bar (50 metres / 167 feet)
Total product weight (approx.)
140 g
Calibre
Omega 3861
Movement Type
Manual‑winding
Power reserve
50 hours