Breitling, Datora Ref. 2031 Chronograph, "Surf Board" Dial, circa 1969 Case: 40mm, stainless steel, three body case, with screw down case back, No. 1368861 Dial: brushed silver dial, with applied hour markers, black subsidiary dials for running seconds and 45 minute counter, pulsations scale on periphery, orange luminous hands Movement: Breitling signed cal. 7734, manual wind, nickel finished, 17 jewels Band: rubber Signed: Breitling on case, dial, movement HID03101062020 © 2020 Heritage Auctions | All Rights Reserved