Mathey Tissot, Ref. 1679, Cal. Val. 72, 38 mm, circa 1955

A gentleman's rare wristwatch with chronograph, full calendar and moon phase
Case: 18k gold, push back. Dial: silvered, applied indexes / Arabic "12", auxiliary seconds, 30 min. and 12h counter, window for day and month, subsidiary dial for moon phase, outer date ring with Arabic numerals, baton hands. Movm.: 2/3 plate movement, rhodium-plated, ground, finely ground chronograph steel parts, ratchet wheel, Glucydur balance, shock protection for balance.