Seiko Prospex SRPD21K1 Turtle

4R36 (automatic with manual winding capacity)

Approximately 41 hours (+25 to -15 seconds per day)

Hardlex crystal

Lumibrite on hands and indexes

Stainless steel case with metal band (three-fold clasp with secure lock, push-button release with extender)

200m / 660ft diver’s

Thickness: 13.2 mm
Diameter: 45.0 mm
Length: 47.7 mm

Screw case back
Screw-down crown
Unidirectional rotating bezel
24 jewels
Day and date display
Stop second hand function (hacking mechanism)