SEIKO SRPB43J1

Movement Type: Automatic with manual winding 
Power Reserve: Approx. 41 hours 
Jewels: 23 
Functions: 
Stop second hand function 
Date display 
Case Material: Stainless steel 
Case Size: Diameter 40.5 mm, Thickness 11.8 mm 
Crystal: Box-shaped Hardlex 
Band Material: Cow leather 
Clasp: Three-fold clasp with push-button release 
Lug Width: 20 mm 
Water Resistance: 5 bar (50 meters) 
Weight: 70 g 
Features: See-through case back, screw case back