A RARE GENTLEMAN'S STAINLESS STEEL OMEGA SPEEDMASTER PROFESSIONAL MARK II CHRONOGRAPH BRACELET WATCH CIRCA 1970, REF. 145.014, WITH "RACING" DIAL D: Grey dial with applied luminous & orange markers, "checkered flag" tracking, triple register recording hours, minutes & continuous seconds, orange centre second totaliser. M: 17 jewel manual wind movement, signed Omega & numbered, calibre 861. C: Tonneau shaped case, tachymetre scale behind crystal, signed Omega Watch Co., Speedmaster emblem on case back, Omega crown & pushers, case width approx. 42mm. B: Omega "shark" mesh bracelet, numbered 59/1380/237.