Seiko Prospex Sumo SPB177 Automatic Diver Green Dial Astron and history - the Precisionist

and history - the Precisionist is a perfect union of innovative technology and design - a discerning timepiece for the ages

while protecting the module from impact when dropped

Case Material: Titanium case with super-hard coating

DIAL COLOR: Black

battery powered watch

Seiko Prospex Sumo SPB177 Automatic Diver Green Dial Astron and history - the PrecisionistCaliber: 6R35 Movement: Prospex Automatic Diver Movement Type: Manual and automatic winding capabilities Vibrations Per Hour: 21,600 Power Reserve: approximately 70 hours Jewels: 24 Bezel: Green one way rotating elapsed timing bezel Dial: Green LumiBrite: LumiBrite hands and markers Crystal: Sapphire crystal Crown: Screwdown crown and caseback Case Diameter: 45. 0mm Case Bracelet Material: Stainless steel case and bracelet Clasp: Tri fold clasp with