1996 Omega Speedmaster 3590.50 Moonwatch

The Omega Speedmaster Professional Moonwatch Ref. 3590.50 (circa 1996) is a classic example of the legendary chronograph that became synonymous with space exploration. Part of the long-running Speedmaster Professional “Moonwatch” line, the 3590.50 retains the traditional design language that traces directly back to the watches used during NASA’s Apollo missions. It features a 42 mm stainless steel case, black dial with tritium luminous markers, and the iconic tachymeter bezel used for measuring speed over distance. Protected by a hesalite crystal, the dial displays the familiar tri-compax chronograph layout—small seconds at 9 o’clock, a 30-minute counter at 3 o’clock, and a 12-hour counter at 6 o’clock—along with the applied Omega logo that distinguishes earlier examples from later references.

Inside the watch is the Omega Calibre 861, a manual-winding chronograph movement derived from the historic Lemania 1873 architecture and widely respected for its durability and serviceability. The movement offers approximately 48 hours of power reserve and was used in Speedmasters during the later Apollo era before the transition to Calibre 1861.

Reference: 3590.50

Serial: 48,327,XXX

Dated: 1996

Dial/Hands: Tritium

Strap: 1479 clasp code - Stainless Steel Bracelet

Case Size: 42mm - Stainless Steel

Lug Width: 20mm

Movement: 861 - Manual - Running (+7s/d 275amp)

Functions: Hour, Minute, Second, Chronograph

Box and Papers: Inner/outer boxes, and warranty card

Crystal: Hesalite

Bracelet size: 7.5”

Case has light normal wear with a couple light marks. Bracelet has light normal wear with nothing notable and no stretch. Tritium dial lume has became a nice dark beige patina with no wear on the dial. Hands have aged a little darker than the dial into a nice dark beige. Running (+7s/d 275amp)

Founded in 1848 by Louis Brandt in Switzerland, Omega has grown into one of the most respected and innovative names in watchmaking. The brand’s early focus on precision earned it accolades at international observatories and competitions, setting the stage for decades of horological achievement. Omega became the official timekeeper for the Olympic Games in 1932, and in 1969, the Speedmaster Professional—nicknamed the "Moonwatch"—made history as the first watch worn on the lunar surface during NASA’s Apollo 11 mission. Omega’s innovations continued with the introduction of the Co-Axial escapement in the late 1990s, a groundbreaking movement that dramatically reduced friction and improved long-term accuracy.

Omega’s lineup showcases a wide range of iconic models that reflect the brand’s legacy and versatility. The Seamaster, introduced in 1948, is a favorite among divers and famously worn by James Bond since 1995’s GoldenEye, blending technical capability with cinematic cool. The Speedmaster remains one of the most storied chronographs in existence, while the Constellation is known for its refined design and chronometric precision. The De Ville collection offers a more elegant, dress-focused aesthetic, often featuring high-end complications and meticulous finishing. Omega continues to lead with innovations like Master Chronometer certification, METAS testing, and antimagnetic technology—ensuring that its watches are not just beautiful, but built for the demands of modern life.