Seiko 5 Sports Automatic SRPE57K1 Watch with Black Dial Japanese Seiko watches are known for their very high technology. Over 100 years old, Seiko has pioneered the watch making industry with a number of innovations, including the first quartz watch and kinetic technology. Seiko watches combine elegance with unparalleled product development. Product number: SRPE57K1Case material: stainless steelCase colour: steel greyCase diameter: 40 mmWatch thickness: 12 mmStrap material: stainless steelStrap colour: steel greyDial colour: black, gold-coloured indexes and pointersGlass: Hardlex mineral glassDate displayDay of the week displayWater resistance: 100 mMechanism: automaticPower reserve: approx. 41 hours All Seiko watches come with a 2-year warranty and are supplied in their original Seiko case. See all Seiko watches here