Seiko 5 - SRPK31K1J

Movement

Caliber Number
4R36

Movement Type
Automatic with manual winding

Power reserve
Approx. 41 hours

Jewels
24

Functions

• Stop second hand function
• Day/Date display

Case/Band

Case Material
Stainless steel

Case Size

• Thickness: 12.1mm
• Diameter: 38.0mm
• Lug-to-lug: 44.2mm

Crystal
Hardlex

LumiBrite
LumiBrite on hands and index(es)

Clasp
Three-fold clasp with push button release

Lug width
20mm

Other Details

Water Resistance
10 bar

Magnetic Resistance
4,800 A/m

Weight
140.0 g

Features

• Unidirectional rotating bezel
• Three-fold clasp with secure lock
• See-through & Screw case back