Omega, Speedmaster, chronograph, ca 1968 Case size: 42 mm Material: steel Movement: manual, caliber 321 Year: circa 1968 Crystal: plastic crystal Bracelet: leather strap Reference number: ST 145.012 Serienummer: 26'076'551 Case number: 145.012-67 SP (H.F) Watches have been opened to examine movements therefore no warranties are made that the watches are water-resistant. Potential buyers should inspect each watch to satisfy themselves as to condition. For more information, please read our Conditions of Purchase.