Seiko Presage Sharp Edged Series Open Heart 3 Days 40.2 MM Automatic Watch SPB417J1 Grand Seiko Diameter:46 mm

Diameter:46 mm

Case Back: Screw-down and transparent with sapphire crystal case back

creating a wall that isolates the watch's module from impact

2mm Thickness 11

GA-2200 and GA-700 with signature oversized case — with the strength and passion of the black and red G-SHOCK brand colors

Seiko Presage Sharp Edged Series Open Heart 3 Days 40.2 MM Automatic Watch SPB417J1 Grand Seiko Diameter:46 mmCaliber Number: 6R5J Movement Type: Automatic with manual winding Precision: +25 to 15 seconds per day Power reserve: Approx. 72 hours(3 days) Jewels: 24 24 hour hand Hacking seconds hand function Case Material: Stainless steel (super hard coating) Case Size Thickness: 13. 5mm Diameter: 40. 2mm Lug to lug: 47. 4mm Crystal: Dual curved sapphire crystal Crystal Coating: Anti reflective coating on inner surface LumiBrite: Lumibrite on hands and index(es)