This LeCoultre Master Mariner dates to mid 1970s, reference 3114. The 10K gold filled case measures 33mm across by 37.6mm long. Because it is a cushion shaped case it has a larger appearance on the wrist. The case is 11.4mm thick. Very appealing black textured dial with applied Roman numerals XII and VI and other hour markers. Day and date aperture at 3 o’clock. The day is set by turning the hands until the desired day shows in, the date can be quickly set by depressing the crown in from winding position. This watch runs on cal. 164 automatic movement developed by a consortium of Swiss companies Doxa, Eberhard, Favre-Leuba, Girard Perregaux and Zodiac and is based on A. Shield caliber. This movement is fast beating at 36,000 BPH. Triovis regulator. The watch is in a remarkable condition given that it is close to 40 years old. Priced here at $975.