Seiko Prospex Land Stainless Steel (super hard coating) Cow Steer Band Automatic With Manual Winding 39.5mm SPB377

Case Material: Stainless steel (super hard coating)
Case Size: Thickness:13.6mm Diameter:39.5mm Lug-to-lug:46.4mm
Crystal: Curved sapphire crystal
Crystal Coating: Anti-reflective coating on inner surface
LumiBrite: LumiBrite on hands and index(es)
Band Material: Cow Steer
Clasp: Three-fold clasp with push button release
Distance between lugs: 20
Caliber Number: 6R54
Movement Type: Automatic with manual winding
Precision: 25 to -15 seconds per day
Power reserve: Approx. 72 hours(3 days)
Jewels: 24
Functions: 24-hour hand (dual time display function), Stop second hand function
Water Resistance: 20 bar
Magnetic Resistance: 4,800 A/m
Features: Screw-down crown, See-through & Screw case back