The Seiko SRPE03K1 has a 4R36 caliber with a duration of approx. 41 hours and day/date display. The glass is sapphire crystal with magnifier.

Movement

Caliber Number
4R36

Movement Type
Automatic with manual winding capacity

Duration
Approx. 41 hours

Exterior

Case Material
Stainless steel with ceramic bezel

Crystal
Sapphire crystal with magnifier

Crystal Coating
Anti-reflective coating on inner surface

LumiBrite
Lumibrite on hands and indexs

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

Other Details

Water Resistance
200m / 660ft diver's

Case Size

• Thickness: 13.2 mm
• Diameter: 45 mm
• Length: 47.7 mm

Other Specifications

• Screw case back
• Screw-down crown
• Three-fold clasp with secure lock
• Unidirectional rotating bezel

Other Features

• 24 jewels
• Day/Date display
• Stop second hand function