The open heartbeat automatic 21-jewel movement is showcased in the dial aperture and in the exhibition case back

Seiko quartz men's watch SUR312

LED: Amber

Movement: Durable Japanese Quartz movement

lap/split times

G-Shock • GMWB5000PC-1 • Full Metal Men's Watch Color:Silver The open heartbeat automatic 21-jewelCelebrate the G SHOCK 40th anniversary in full spectrum style with a masterpiece design that brings the colors of the rainbow to a splendid full metal timepiece. Be free, stay true to your own style and values. Express yourself in all the colors of the rainbow. Featuring the iconic form of the very first G SHOCK, the DW5000, with design accents in a whole spectrum of color. FEATURES Case size (L W H): 49. 3 43. 2 13 mm Weight: 167 g Case and bezel