Omega DeVille automatic tank case dress watch in heavy 18K solid gold rectangular case and with genuine alligator strap. This watch has been dated by serial number to 1973, it is in excellent working condition and was recently serviced. The Omega automatic movement is a cal 711. Photos are magnified and show details not seen by naked eye, the case measures 28 mm across (not including crown) x 35 mm lug to lug and is fit with an alligator leather bracelet.