劳力士，不锈钢自动上弦链带腕表，SUBMARINER DATE，型号1680，约1978年制，附劳力士维修单据

Rolex's first Submariner with date, the reference 1680, was introduced in 1968 with much success. Collectors will make a distinction between a reference 1680 with red writing on the dial and a reference 1680 with all-white writing. Rolex changed to the all-white print dial in 1976⁄77, marking the end of red writing on the Submariner.