The Seiko 5 Automatic 21 Jewels SNXS77 SNXS77K1 SNXS77K Stainless Steel Men's Watch is nearly identical in appearance to the Seiko 5 Automatic 21 Jewels SNXS77 SNXS77K1 SNXS77K, but it is slimmer overall and includes a day and date display as well as an additional crown. This Seiko can withstand up to 30 meters of water pressure. This Seiko Men's Watch is exceptionally comfortable to wear and requires minimal effort to read. The Seiko 5 Automatic SNXS77 watch for men features an analog display and runs without a battery. The day and date functions, in addition to the day, date, and hour markers, are located at three o'clock on the watch face. The watch has a stainless steel case with a 37-millimeter diameter, as well as a stainless steel band with a 12-millimeter width and a fold-over fastening. The dial has luminescent hands and is protected by a portion of hardlex crystal.