Omega Speedmaster Ref. 2915-1 — 1957 The Omega Speedmaster Ref. 2915-1 is one of the most important and collectible watches in Omega's history. Introduced in 1957 , it was the first-generation Speedmaster , originally designed as a precision chronograph for motorsport, racing, and other sporting applications—not specifically for space travel. Key Facts Manufacturer: Omega Model: Speedmaster Reference: 2915-1 Year: 1957 Movement: Omega Calibre 321 Type: Manual-winding chronograph Case: Stainless steel Bezel: Original steel tachymeter bezel Hands: Distinctive Broad Arrow hour and minute hands Lugs: Straight lugs Crystal: Hesalite Diameter: Approximately 39 mm Water resistance: Approximately 60 m / 200 ft Why It Is So Important The 2915 was the watch that established the Speedmaster name and design language . Its tachymeter scale allowed the wearer to calculate speed over a measured distance, making it particularly useful for...
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