Croton Aviator Sea Diver chronograph, S/S case measuring 38.5 mm in diameter not including the crown and 45 mm from lug to lug, the caseshows only light signs of use and has not been abused. The original dial is in beautiful condition although the luminous material on the dial and hands is nicely aged. The crystal is also in excellent condition, signed Croton the manual wind Valjoux caliber 23 movement winds and sets smoothly. It runs well and has been keeping good time, chronograph functions as it should. Overall in excellent condition.