SEIKO SRPE511K1

Movement Type: Automatic with manual winding 
Power Reserve: Approx. 41 hours 
Jewels: 24 
Functions: 
Stop second hand function 
Day & Date display 
Case Material: Stainless steel 
Case Size: Diameter 40.0 mm, Thickness 11.5 mm, Lug-to-lug 44.6 mm 
Crystal: Hardlex 
LumiBrite: On hands and indexes 
Clasp: Three-fold clasp with push-button release 
Lug Width: 20 mm 
Water Resistance: 10 bar (100 meters) 
Magnetic Resistance: 4,800 A/m 
Weight: 142 g 
Features: Three-fold clasp with secure lock, see-through case back, screw case back