SSB397P1 SEIKO MEN'S The Seiko SSB397P1 watch features a chronograph with a tachymeter, a Quartz movement with a battery life of approx. 3 years and is a housed in a 41.0 mm case size. A sporty watch for everyday and is water resistant up to a pressure of 10 bar. SPECIFICATIONS MOVEMENT CALIBER NUMBER 8T63 MOVEMENT TYPE QUARTZ PRECISION ± 15 SECONDS PER MONTH BATTERY LIFE APPROX. 3 YEARS FUNCTIONS 24-HOUR HAND EQUIPPED WITH SMALL SECONDS HAND CHRONOGRAPH UP TO 60 MINUTES IN 1/5 SECOND INCREMENTS DATE DISPLAY CASE/BAND CASE MATERIAL STAINLESS STEEL CASE SIZE THICKNESS: 12.3 MMDIAMETER: 41.0 MMLUG-TO-LUG: 48.0 MM CRYSTAL HARDLEX LUMIBRITE LUMIBRITE ON HANDS AND INDEX(ES) CLASP THREE-FOLD CLASP WITH PUSH BUTTON RELEASE DISTANCE BETWEEN LUGS 22 OTHER DETAILS WATER RESISTANCE 10 BAR WEIGHT 152.0 FEATURES SCREW CASE BACK