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OMEGA Speedmaster Professional “Missions Gemini XII” Ref. 3597.10.00 – Stainless Steel – 1998 – Omega Service 2026 – Excellent Condition

We are pleased to present this exceptional Omega Speedmaster Professional Missions Gemini XII Ref. 3597.10.00, a highly collectible and historically significant chronograph celebrating one of NASA’s landmark space missions.

Crafted in stainless steel and dating to 1998, this remarkable timepiece is preserved in excellent condition and has benefited from a recent Omega service carried out in 2026. As part of the celebrated “Missions” series, this reference pays tribute to the Gemini 12 mission—the final flight of NASA’s Gemini program and a crucial step toward the Apollo moon landings.

The classic 42mm stainless steel case retains the iconic asymmetrical “Moonwatch” design, complete with lyre lugs and tachymeter bezel. Built for precision, durability, and legibility, the Speedmaster Professional remains one of the most enduring tool watches ever created.

The dial features a distinctive design unique (LOVELL & ALDRIN) to the Missions series, with the Gemini XII insignia proudly displayed, adding both visual character and historical depth. The traditional tri-compax layout ensures optimal readability, while luminous hands and markers enhance functionality in all conditions.

At its core beats the legendary manual-winding chronograph movement, revered for its robustness and precision. This caliber—famously flight-qualified by NASA—underscores the Speedmaster’s role in space exploration history and its reputation as the first watch worn on the moon.

The watch is fitted with a stainless steel bracelet, completing its authentic tool-watch aesthetic while ensuring comfort and durability.

This Omega Speedmaster Professional Missions Gemini XII Ref. 3597.10.00 is offered with:

- Stainless steel case and bracelet

- Limited “Missions” series – Gemini XII edition - 150 pieces only!

- Manual-winding chronograph movement cal. 1861

- Special mission insignia dial LOVELL & ALDRIN 

- Omega service completed in 2026 - two years of warranty!

- Production year: 1998

- Excellent overall condition

- Highly collectible space-themed reference

“A tribute to the pioneering spirit of NASA space exploration, the Gemini XII Speedmaster blends iconic design with historical significance—capturing a defining moment in mankind’s journey beyond Earth.”