SEIKO Prospex Automatic Diver

Specifications
Movement
Caliber Number: 4R35
Movement Type: Automatic with manual winding
Power reserve: Approx. 41 hours
Jewels: 23
Functions: Stop second hand function, Date display
Case/Band
Case Material: Stainless steel
Case Size: Thickness:12.3mm; Diameter:41.7mm; Lug-to-lug:49.5mm
Crystal: Hardlex; LumiBrite; LumiBrite on hands, index(es) and bezel
Clasp: Three-fold clasp with secure lock , push button release with extender
Distance between lugs: 20
Other Details: Water Resistance; 200m / 660ft diver's
Magnetic Resistance: 4,800 A/m
Weight: 170.0g
Features: Unidirectional rotating bezel; Screw-down crown; Three-fold clasp with secure lock; Screw case back

TECHNICAL DATA
CASE DIMENSIONS: DIAMETER: 41.7 mm
THICKNESS: 12.3 mm
LENGTH: 49.5 mm
MOVEMENT: Automatic Caliber, 4R35, 21,600 vibrations per hour, 23 jewels Power reserve: approximately 41 hours
CASE: Stainless steel case
CRYSTAL MATERIAL: Hardlex crystal
WATER RESISTANCE: 200 meters (660 feet), follows ISO standards and is suitable for scuba diving
DIAL COLOR: Black
STRAP: Stainless steel bracelet
LUG WIDTH: 20 mm