Omega Speedmaster Professional Moonwatch 3861 Stainless Steel - Sedna Gold / Pink Ref. 310.20.42.50.99.001

The Omega Speedmaster Moonwatch Professional 310.20.42.50.99.001 debuted in 2024 and forms part of the contemporary Moonwatch Professional collection, combining the established Moonwatch architecture with extensive use of Sedna Gold. This reference interprets the classic Moonwatch design through a two-tone execution that emphasises material contrast while retaining historical proportions and layout. The asymmetrical 42 mm case is crafted from stainless steel and paired with a Sedna Gold bezel ring fitted with a black ceramic tachymeter insert. The tachymeter scale includes the traditional dot over 90 detail. The case measures 47.50 mm from lug to lug and has a thickness of approximately 13.18 mm. Sapphire crystal is used for both the front and the exhibition caseback. Water resistance is rated to 5 bar. The stepped dial is executed in black and reflects the design language of fourth-generation Speedmaster models. It features applied Sedna Gold hour markers and an applied Omega logo, paired with Moonwatch-style hands throughout. The chronograph display consists of a small seconds sub-dial, a 30-minute recorder, and a 12-hour recorder arranged in the established Moonwatch configuration. Powering the watch is the manually wound Omega Co-Axial Master Chronometer Calibre 3861. Certified by METAS, the movement operates at a frequency of 3 Hz and provides a power reserve of approximately 50 hours. It features a free-sprung balance with a silicon balance spring and offers resistance to magnetic fields up to 15,000 gauss. The rhodium-plated movement is visible through the sapphire caseback. The Speedmaster Moonwatch Professional 310.20.42.50.99.001 is fitted with a stainless steel bracelet featuring Sedna Gold centre links, secured by a foldover clasp with comfort adjustment.