Unusual Hamilton chronograph, vintage from the 1970s, in very good condition with no signs of wear or defects. All in steel, military style, with black dial and bezel - the dial has three sub-dials for continuous seconds, 12 hours and 30 minutes, with central chrono seconds and day-date at 3 o'clock - the bezel is fixed, with tachymetric scale. Crown with logo, and push buttons. Screw-down case back, ref. 9379. Self-winding Valjoux ETA 7750 movement, in perfect working order. Oversize diameter measuring 40 mm excluding crown and push buttons - leather strap measuring approx. 20 cm. Shipped via registered mail.