Seiko SRPF77K1
Seiko SRPF77K1
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Seiko SRPF77K1

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SEIKO Prospex Automatic Save The Oceans Divers Watch SRPF77K1


Caliber Number: 4R36

Movement Type

Automatic with manual winding

Precision: +25 to -15 seconds per day

Power reserve Approx. 41 hours

Jewels 24


Stop second hand function

Day/Date display


Case Material: Stainless steel 

Case Size:

  • Thickness:13.2mm
  • Diameter:45.0mm
  • Lug-to-lug:47.7mm

Crystal: Sapphire crystal with magnifier

Crystal Coating: Anti-reflective coating on inner surface

LumiBrite: LumiBrite on hands, index(es) and bezel

Band Material: Silicone

Distance between lugs: 22mm

Other Details

Water Resistance: 200m / 660ft diver's

Weight: 128.0


  • SPECIAL EDITION on the case back
  • Unidirectional rotating bezel
  • Screw-down crown
  • Screw case back

All our Seiko watches comes with 1 year warranty