Seiko Prospex SPB249J1 Alpinist Automatic Watch

Movement Caliber Number: 6R35
Movement Type: Automatic with manual winding
Precision: +25 to -15 seconds per day
Power reserve Approx. 70 hours
Jewels 24
Stop second hand function
Date display
Case/Band/Case Material: Stainless steel
Water ressistance: 200m
Case Size
Thickness:12.9mm
Diameter:38.0mm
Lug-to-lug:46.2mm
Curved sapphire crystal
Crystal Coating
Anti-reflective coating on inner surface
LumiBrite on hands and index(es)
Three-fold clasp with push button release
Bracelet Length: 195 mm
Distance between lugs: 19 mm
Other Details
Water Resistance: 20 bar
Weight 146g
Features
Screw-down crown
See-through & Screw case back"