Seiko Cal. 4521 - 402

Seiko 4521-402

The 4521-402 is a sought-after Quartz piece from Seiko's golden era. The Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-fe9a13cb061d]

Also known as: Turtle, Baby Tuna

Specifications

Movement
Quartz
Case Material
PVD Black
Case Width
37mm
Case Thickness
13.7mm
Lug Width
19mm
Crystal
Hardlex
Bezel
Rotating
Water Resistance
50m
Dial Color
Green
Jewels
31j
Frequency
36,000 bph
Power Reserve
37 hours
Year
1988

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