Omega produced exactly 1,957 units of the reference 311.33.42.50.01.001 to commemorate the 50th anniversary of the original Speedmaster. Housed within the traditional 42mm asymmetrical stainless steel case, the dial is constructed from fired black enamel, a complex material choice rarely utilized in standard modern production. This high-temperature firing process yields a deep black, vitrified finish that serves as a backdrop for the vintage-styled Omega logo and the specific fractional production number printed directly on the dial.
A sapphire display caseback reveals the manual-wind Caliber 3201, a highly modified mechanism based on the Frédéric Piguet 1180 ébauche. This chronometer-certified movement integrates a vertical clutch and column-wheel architecture, providing exact chronograph actuation compared to the cam-actuated systems of standard Moonwatches. Omega further modernized the caliber by incorporating their proprietary Co-Axial escapement and a free-sprung balance beating at 28,800 vibrations per hour.
Founded in 1848 by Louis Brandt in La Chaux-de-Fonds, Switzerland, the company that would become Omega established its identity with the 1894 introduction of the 19-ligne 'Omega' calibre. This movement was a landmark in industrial watchmaking, utilizing interchangeable components to streamline production and repair—a philosophy of accessible precision that continues to define the brand.
Omega cemented its reputation for robust accuracy through its role as the Official Timekeeper for the Olympic Games since 1932 and, most famously, through the Speedmaster Professional's flight qualification by NASA, which culminated in its journey to the Moon.
In the modern era, the brand's most significant contribution has been the industrialization of the co-axial escapement, an invention by Dr. George Daniels that fundamentally reduces friction within the calibre for superior long-term chronometric stability. Typified by purpose-driven design, Omega's collections—from the abyssal-depth Seamaster to the iconic Speedmaster—are archetypes of the professional tool watch, balancing legible aesthetics with advanced material science and anti-magnetic properties through its Master Chronometer certification.
Overall Grade: 9 / 10 | Mint Condition, Minor Visible Wear Production: 2011 Contents: Full-set Genre: Sports Chronograph
Size: 42mm Thickness: approx. 13mm Lug Width: 20mm
Case: Stainless steel, asymmetrical case, brushed sides and mirrored facets, minor wear Bezel: Stainless steel, black aluminum tachymeter insert, minor wear Dial: Black enamel dial, printed markers, limited edition print Hands: White pencil hands, lumed
Crown: Stainless steel, push/pull crown and pushers, minor wear Crystal: Domed sapphire crystal, minor wear Bracelet: Stainless steel bracelet, minor wear Caseback: Stainless steel, sapphire window, screw-down, minor wear Movement: Manual Wind Chronograph Caliber: Co-Axial 3201