Seiko Cal. 4537 - 667

Seiko 4537-667

The 4537-667 is a sought-after Kinetic piece from Seiko's golden era. The Bidirectional bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-9f050fe2211c]

Also known as: Sumo, Flighty

Specifications

Movement
Kinetic
Case Material
Hardlex-Coated Steel
Case Width
43mm
Case Thickness
15.2mm
Lug Width
21mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
150m
Dial Color
White
Jewels
20j
Frequency
36,000 bph
Power Reserve
53 hours
Year
1975

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