The OMEGA Speedmaster Professional 3592.50 is a remarkable transitional model, combining the classic appeal of the Moonwatch with a sapphire display caseback—a feature that lets collectors admire the beautifully finished Calibre 863 manual-winding movement.
This 42mm stainless steel chronograph features the iconic hesalite crystal on the front and a sapphire caseback, blending historical accuracy with modern appeal. Revered for its association with NASA’s space missions, the Speedmaster remains one of the most respected chronographs in horological history.
This pre-owned piece is in very good condition, showing light wear and minor scratches consistent with careful use. It fits wrists up to 20.5cm and comes complete with its guarantee card, inner box, and manual.
Specifications:
• Model: OMEGA Speedmaster Professional 3592.50
• Movement: Manual-winding Calibre 863
• Case Size: 42mm stainless steel
• Crystal: Hesalite front, sapphire exhibition caseback
• Bracelet: Stainless steel (fits up to 20.5cm wrist)
• Water Resistance: 50 meters (cannot be guaranteed due to age)
• Accessories: Guarantee card, Inner box, Manual
• Condition: Very good – A few traces of usage, some scratches can be seen but overall, in very good condition
• 7-day grace period: Refund policy – Timeless Luxury
• Delivery timeframe: 2 to 3 weeks – Shipping policy – Timeless Luxury
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Key Features:
• Transitional Moonwatch with both hesalite crystal and sapphire caseback
• Manual-wind Calibre 863 with Geneva stripes
• Iconic Speedmaster design worn by astronauts
• Ideal for collectors seeking both heritage and display
• Supplied with original Omega guarantee card, box, and manual
A perfect fusion of history and horological craftsmanship, the Speedmaster 3592.50 offers a rare chance to own a collector-favourite with added mechanical visibility.
“Style is Timeless”