Omega Speedmaster Professional

The Speedmaster Professional launched 1957 as motorsport chronograph. NASA certified it 1965 for manned space missions following rigorous testing. This white dial variant introduced 2021 represents modern interpretation whilst maintaining manual-winding heritage and Moonwatch certification.

Forty-two millimetres in stainless steel with brushed finishing. Asymmetric case with crown guards protecting pushers. Fixed tachymetre bezel with black aluminium insert measuring average speeds to 500 units per hour. Sapphire crystal front and display caseback. Fifty metres water resistance.

White dial with applied hour markers and black subdials. Three subdials—running seconds at nine o'clock, thirty-minute counter at three o'clock, twelve-hour counter at six o'clock. Inside sits Calibre 3861—Omega's updated manual-winding chronograph based on legendary 861/1861 architecture. Manual winding requires daily interaction. Fifty-hour power reserve. Master Chronometer certified by METAS—0 to +5 seconds daily accuracy, 15,000 gauss antimagnetic resistance.

Stainless steel bracelet with five-link construction and brushed finishing. Folding safety clasp. Excellent condition from 2024 means minimal wear—expect light surface marks on bracelet, maintained nearly new condition. Full set includes Omega presentation box, warranty card dated 2024, booklets, NATO strap. Five-year manufacturer's warranty active.

The white dial provides distinctive appearance whilst maintaining manual-winding Calibre 3861 and NASA certification for extravehicular activity supporting Moonwatch heritage in modern Master Chronometer specification.