Omega Speedmaster Professional Moonwatch Co-Axial Master Chronometer 42mm

Omega 310.60.42.50.02.001 Speedmaster Professional Moonwatch Co-Axial Master Chronometer 42mm.  This refined Omega timepiece boasts a brushed and polished 18kt Canopus (white) gold case, paired with a polished Canopus gold crown and buttons. The classic black anodized aluminum bezel ring, featuring a tachymeter scale and the iconic dot over 90 ('DON'), frames the silver, double-stepped dial with a sun-ray finish. Polished Canopus gold hands with luminous fill and applied Canopus gold index hour markers with luminous tips enhance its visibility. The fine printed minute, second, and fraction markers are complemented by a small continuous running seconds sub-dial at 9 o'clock. The chronograph functions include a large central seconds counter, a 30-minute counter at 3 o'clock, and a 12-hour counter at 6 o'clock. Powered by the Omega caliber 3861, this watch beats at 21,600 vph (3Hz), with 26 jewels and a 50-hour power reserve. As a METAS Certified Master-Chronometer, the watch ensures precision and resilience, withstanding magnetic fields up to 15,000 gauss thanks to its silicon balance spring and co-axial escapement.