Caliber Number: 4R36

Movement Type: Automatic with manual winding capacity

Duration: Approx. 41 hours



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 indexes

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㎜
Diameter: 45㎜
Length: 47.7㎜ 

Weight: 198.0g 


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

Seiko Prospex Automatic SRPE03K1