OMEGA | SPEEDMASTER ST 186.004 'ALASKA IV', A STAINLESS STEEL QUARTZ DIGITAL SPLIT CHRONOGRAPH WRISTWATCH, MADE IN 1978 | Omega Speedmaster: To the Moon and Back | Celebrating 50 years since Apollo 11 | Watches | Sotheby's
Bonhams : Omega. A stainless steel quartz digital chronograph bracelet watch Speedmaster Quartz, Ref 186.0005, Circa 1975