Omega Pre-Moonwatch Calibre 33.3 Chronograph Tropical Dial Highly Important Rare...

Name: Omega Pre-Moonwatch Calibre 33.3 Chronograph Tropical Dial Highly Important Rare Men's Wristwatch c.
Description: C.1940'sABA rare and historically significant vintage Omega Calibre 33.3 Chronograph, a piece coveted by horological enthusiasts for its oversized stainless steel case and the legendary manual-winding movement it houses. This movement, the Cal. 33.3 CHRO, is a highly robust and influential calibre derived from Lemania and is historically crucial as the direct ancestor to the Omega Calibre 321, which famously powered the Speedmaster Moonwatch during all six Apollo lunar missions. This specific example boasts a beautifully aged, "tropical" multi-scale dial featuring both blue tachymeter and red "DUE POUR 30 PULSATIONS" pulsometer scales, a testament to its professional utility and an aesthetic feature highly prized on the collector's market. Representing the pinnacle of Omega's early chronograph development and its deep roots in professional timekeeping, this watch with its distinctive patina and robust build is an outstanding investment piece with history that combines this unique medical utility with classic design.Stainless SteelSize: 37.5mm x 45mm;Private London CollectorThis item has been cleared against the Art Loss Register database and comes with a confirmation letter.