The Omega Chronostop Reference 146.009 debuted in the late 60's as a simplified timing solution, eventually earning an honorable mention at the 1966 Montreal World's Fair for its design. This specific iteration houses the manual-wind Caliber 920, which was derived from the Lemania-based architecture of the Speedmaster’s legendary Caliber 861. The monopusher mechanism allows for rapid 60-second intervals where the user must depress the button to start, and hold it to freeze the central hand before releasing to reset.
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: 7 / 10 | Good Condition, Medium Wear Production: est. 1970's Contents: Watch Only Genre: Vintage Dress Watch
Size: 35mm Thickness: approx. 12mm Lug Width: approx. 18mm
Case: Stainless steel tonneau case, mirrored finish, visible wear Bezel: Stainless steel, smooth bezel, mirrored finish, visible wear Dial: Cream patinated dial, applied markers with black insert, 3 o'clock date Hands: Steel baton hands, visible wear
Crown: Stainless steel push/pull crown and pusher, visibly worn Crystal: Domed hesalite crystal, visible wear Bracelet: Milanese mesh bracelet and clasp, visible wear Caseback: Stainless steel, solid screw-down caseback, visible wear Movement: Manual Wind Caliber: 920