SRPD23K1 
Exterior
Case Material - Stainless steel (hard coating)

Glass Material - Hardlex

Diameter: 43.8㎜

Movement
Caliber Number - 4R35

Movement Type - Automatic with manual winding capacity
Duration - Approx. 41 hours

Accuracy
+45 to -35 seconds per day

Other Details
Three-fold clasp with secure lock , push button release with extender

LumiBrite
Lumibrite on hands and indexes

Water Resistance
200m / 660ft diver's

Features
24 jewels
Date display
Screw case back
Screw-down crown
Stop seconds hand function
Three-fold clasp with secure lock
Unidirectional rotating bezel
3 YEAR WARRANTY AUTHORIZED SEIKO DELAER