Speedmaster Professional Moonwatch 3861 Sedna Gold / Black / Bracelet

The Omega Speedmaster Moonwatch Professional 310.60.42.50.01.001 debuted in 2021 as part of the renewed Moonwatch Professional collection and represents the model in a full Sedna Gold execution. While preserving the historic Moonwatch proportions and layout, this reference introduces precious-metal construction throughout the case and bracelet. The asymmetrical 42 mm case is crafted entirely from Sedna Gold and measures 47.50 mm from lug to lug, with a thickness of approximately 13.18 mm. It is fitted with a matching Sedna Gold bezel featuring a black ceramic tachymeter insert with the traditional dot over 90 detail. Sapphire crystal is used for both the front and the exhibition caseback. Water resistance is rated to 5 bar. The stepped dial is finished in black and follows the design language associated with fourth-generation Speedmaster models. It features applied Sedna Gold hour markers and an applied Omega logo, paired with Moonwatch-style hands. 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 is resistant to magnetic fields up to 15,000 gauss. The rhodium-plated movement is visible through the sapphire caseback. The Speedmaster Moonwatch Professional 310.60.42.50.01.001 is paired with a Sedna Gold bracelet, secured by a foldover clasp with comfort adjustment, completing the full precious-metal interpretation of the modern Moonwatch.