Exceptional vintage Omega mechanical stopwatch, reference H.M.C. 458, offered as a rare complete set with original accessories. A highly collectible timing instrument, preserved in near NOS condition, rarely seen with original red Omega box, “Swiss” cloth pouch, factory tags, and period Omega athletics card. This model belongs to the type of stopwatches used by official timing committees and sporting federations, and the engraved marking “H.M.C. 458” on the caseback strongly suggests allocation within a professional timing fleet. Omega was the official timekeeper of the Mexico 1968 Olympic Games, and stopwatches of this era were used extensively in elite competitive environments. Features & Details Brand: Omega Type: Mechanical stopwatch Marking: H.M.C. 458 (rare numbered timing fleet engraving) Dial: Black with contrasting white scale – superb legibility Pushers: Dual, metal knurled Condition: Stopwatch: Near NOS (minimal signs of age, extremely well preserved) Movement: working Box interior: original foam has aged and deteriorated (common for this period) Exterior box: excellent vintage condition Accessories included: Original Omega red presentation box Original cloth “SWISS” pouch Two original Omega tags Period Omega card with athletics motif Era: ca. 1960s–1970s Dimensions: standard professional timing size A fantastic piece for collectors of Omega, Olympic timing equipment, motorsport memorabilia, horological instruments, or anyone seeking a historically significant stopwatch in unusually complete condition. All items in our auctions come from our private collection. We are TOP-rated sellers with excellent reviews and ensure fast, secure, and trackable shipping worldwide.