Seiko combine cutting-edge innovation with 130 years of watch making experience and are dedicated to striving for perfection in their timepieces. 5 represents the original five key attributes of every Seiko 5 watch: Automatic movement, Day-date display at the three oclock position, Water Resistance, Recessed crown at the four oclock position and Durable case and bracelet features still present today. Ref: SRPE51L1 Product Information Brand: Seiko Movement Type: Mechanical Movement Calibre: 4R35 -35/+45 seconds per day Band Type: Stainless Steel Bracelet Dial: Grey Water Resistance: 100m Case Dimension: 40mm (W) x 12mm (D) Glass Type: Hardlex