Seiko Presage Sharp Edge Series Automatic Multi-hand Dial
SPB307
SPB307 Specifications:
Movement
Caliber: 6R21
Type: Automatic with manual winding
Precision: +25 to -15 seconds per day
Power reserve: Approx. 45 hours
Jewels: 29
Exterior
Case Material: Stainless steel (super hard coating)
Case Size: Thickness:12.2mm; Diameter:40.2mm
Crystal: Sapphire crystal
Crystal Coating: Anti-reflective coating on inner surface
LumiBrite: Lumibrite on hands and index(es)
Clasp: Three-fold clasp with push button release
Other Details
Water Resistance: 10 bar
Weight: 166.0g
See-through & Screw case back
Date hand and day hand
Power reserve indicator
Stop second-hand function
Day/Date display