Seiko Astron SSH155 Sport Design Dual Time Chronograph Black DLC GPS Solar canvas strap 4 Daily alarms and 1

4 Daily alarms and 1 Snooze Alarm

Ensuring Toughness And Ease Of Operation While Reducing The Case Size

The cases undergo a polishing treatment

With a stately diameter of 55 mm back then

DIMENSIONS: 36mm diameter / 12

Seiko Astron SSH155 Sport Design Dual Time Chronograph Black DLC GPS Solar canvas strap 4 Daily alarms and 1Caliber Number: 5X83 Movement Type: GPS solar Precision: 15 seconds per month (1 second per day) Power Reserve: Operating for approx. 6 months (when fully charged), power save approx. 2 years Jewels: 14 Case Thickness: 13. 4mm Case Diameter: 43. 3mm Lug to Lug: 49. 5mm Crystal: Dual curved sapphire crystal Crystal Coating: Super clear coating LumiBrite: Lumibrite on hands and index(es) Clasp: Three fold clasp with push button release Distance Between