Seiko Prospex Spb505 Alpinist Black Dial
Case/Band
Case Material: Stainless steel (super hard coating)
Case Size:
- Thickness:12.7mm
- Diameter:39.5mm
- Lug-to-lug:46.4mm
Crystal: Sapphire crystal with magnifier
Crystal Coating: Anti-reflective coating on inner surface
LumiBrite: Lumibrite on hands and index(es)
Clasp: Three-fold clasp with push button release
Distance between lugs: 20mm
Movement
Caliber Number: 6R55
Movement Type: Automatic with manual winding
Precision: +25 to -15 seconds per day
Power reserve: Approx. 72 hours(3 days)
Jewels: 24
Functions: Stop second hand function
Other Details
Water Resistance: 20 bar
Magnetic Resistance: 4,800 A/m
Weight: 88.0g
Features:
- Rotating compass bezel
- Screw-down crown
- See-through & Screw case back