Seiko Prospex SRPB55K1

4R35 (automatic with manual winding capacity)

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

Hardlex crystal

Lumibrite on hands and indexes

Stainless steel (hard coating) case with silicone band

200m / 660ft diver’s

Thickness: 13.4 mm
Diameter: 43.8 mm
Length: 48.4 mm

Screw case back
Screw-down crown
Unidirectional rotating bezel
23 jewels
Date display
Stop second hand function (hacking mechanism)