O Speedmaster Ref# 310.32.42.50.01.001
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O Speedmaster Ref# 310.32.42.50.01.001
🔹 Overview
The O Speedmaster Professional Moonwatch Ref. 310.32.42.50.01.001 is more than a watch – it is a legend. Chosen by NASA and trusted in space, it became the first watch worn on the Moon during the Apollo 11 mission in 1969. With its 42 mm stainless steel case, matte black dial, Hesalite crystal, and tachymeter bezel, the Speedmaster combines purposeful design with a history that changed the world.
💎 Key Specifications
Reference: 310.32.42.50.01.001
Case: 42 mm stainless steel
Bezel: Black tachymeter bezel, fixed
Dial: Matte black with luminous markers, three-register chronograph layout
Crystal: Domed Hesalite crystal (space-heritage design)
Bracelet/Strap: Black NATO-style strap, stainless steel buckle
Water Resistance: 50 m / 167 ft
⏱️ Movement
Type: Manual-wind mechanical
Caliber: O Calibre 3861 (updated from Calibre 1861)
Certification: METAS Master Chronometer, anti-magnetic up to 15,000 gauss
Features: Hours, minutes, small seconds, chronograph with 30-minute and 12-hour counters, central chronograph seconds hand
Power Reserve: ~50 hours
Special Notes: Hand-winding ritual connects wearer to its space legacy; finishing visible through sapphire caseback in some variants
✅ Conclusion
The O Speedmaster Professional Moonwatch Ref. 310.32.42.50.01.001 is the only watch flight-certified by NASA for all manned space missions and the first to be worn on the lunar surface. Its rugged design, manual-wind tradition, and unmatched legacy make it a symbol of resilience and human achievement. Whether in the boardroom, on a mountain trail, or simply as a reminder of history on your wrist, the Moonwatch remains timeless, legendary, and unforgettable.
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Returns or exchanges are accepted within 3 days of delivery if items are unused, in original condition and packaging.
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