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Seiko Prospex

SRPE87K1 (FKA SRP639K1)

SRPE87K1 (FKA SRP639K1)

$489
$652 $489
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Seiko Prospex x Mechanical Tuna ft. Yellow Fin Men Casual Formal Sports Round Diver 200m Water Resistant Watch SRPE87K1 SRPE87 SRPE-87 SRPE-87K1 SRP639K1 SRP639 SRP-639 SRP-639K1

Caliber Number / Movement
4R36 (automatic with manual winding capacity)

Power Reserve / Accuracy
Approximately 41 hours (+45 to -35 seconds per day)

Crystal
Hardlex crystal

LumiBrite
Lumibrite on hands, indexes and bezel

Case & Band Material
Stainless steel case with resin band

Water Resistance
200m / 660ft diver’s

Case Size
Thickness: 13.8 mm
Diameter: 48.0 mm
Length: 50.4 mm

Other Specifications
Seiko Prospex x Mechanical Tuna ft. Yellow Fin
Unidirectional rotating bezel
Screw-down crown
Screw case back
24 jewels
Day and date display
Stop second hand function (hacking mechanism)
Regular timekeeping (analog display)

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