Seiko Presage Full Stainless Steel 40.5 MM Automatic Blue Dial Watch SSA347J1 Seiko Accuracy: ±15 seconds per month

Accuracy:        ±15 seconds per month (±1 second per day)

which has evolved over the decades since 1983 without changing its look

a special laser etched finish is used to create a Grid Tunnel

yet lightweight

Seiko Presage Full Stainless Steel 40.5 MM Automatic Blue Dial Watch SSA347J1 Seiko Accuracy: ±15 seconds per monthCaliber Number: 4R57 Movement Type: Automatic with manual winding Power reserve: Approx. 41 hours Jewels: 29 Date hand Power reserve indicator Stop second hand function Case Material: Stainless steel Case Size Thickness: 14. 4mm Diameter: 40. 5mm Crystal: Box shaped Hardlex Clasp: Deployment clasp with push button release Distance between lugs: 20mm Water Resistance: 5 bar See through & Screw case back