Seiko Cal. 4520 - 639

Seiko 4520-639

The 4520-639 is a sought-after Kinetic piece from Seiko's golden era. The Fixed bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-caa6c63f2275]

Also known as: Samurai, Bellmatic

Specifications

Movement
Kinetic
Case Material
Two-Tone
Case Width
37mm
Case Thickness
10.2mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Fixed
Water Resistance
180m
Dial Color
Burgundy
Jewels
22j
Frequency
36,000 bph
Power Reserve
64 hours
Year
1967

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