Quartz chronograph model from the Seiko selection. We offer a wide variety of colors and colors that satisfy both design and function. Caliber: 8T63 / Battery Life: Approx. 3 years / Accuracy: Average ± 15 seconds per month / 24 hour hand / Second hand included / Stop watch function (1/5 second measurement, 60 minute meter), Reinforced water resistance for everyday use (10 ATM), Calendar (date) function / LumiBrite: Yes (hands and index), Screwback, tachymeter, MOVEMENT JAPMENT JAP. AN/CASED IN CHINA / Wrist Circumference (Max): Approx. 7.7 inches (19.5 cm).