Seiko Prospex SPB121J1

6R35 (automatic with manual winding capacity)

Approximately 70 hours (+25 to -15 seconds per day)

Sapphire crystal with magnifier (anti-reflective coating)

Lumibrite on hands and indexes

Stainless steel case with calfskin leather band (deployment clasp with push-button release)

200m / 660ft diver’s

Thickness: 13.2 mm
Diameter: 39.5 mm
Length: 46.4 mm

Rotating compass inner ring
Screw case back
Screw-down crown
See-through back case
24 jewels
Date display
Stop second hand function (hacking mechanism)