The Omega 310.30.42.50.01.001 Speedmaster Professional Moonwatch is an enduring symbol of precision chronography and historical achievement. Featuring a 42mm stainless steel case and matching bracelet, this reference echoes the original design worn by Apollo astronauts, complete with the legendary Hesalite crystal and black stepped dial. Powered by the caliber 3861 manual-wind movement, the watch offers a master chronometer-certified upgrade, providing anti-magnetic protection and 50-hour power reserve while maintaining the classic aesthetics trusted on lunar missions. Collectors favor this Speedmaster iteration for its adherence to NASA flight qualifications for all manned space missions, making it a direct lineage from the iconic watches worn on the moon. The black dial is punctuated by crisp white hands and markers and framed by the tachymeter bezel. A solid caseback underscores its robust, mission-proven construction. The 310.30.42.50.01.001 is a testament to Omega's technical prowess and a staple in any comprehensive chronograph collection, representing both technical advancement and the thrilling spirit of human exploration. Like New with Omega box and papers dated 2025.