Seiko Cal. 4528 - 137

Seiko 4528-137

The 4528-137 is a sought-after Quartz piece from Seiko's golden era. The Coin-Edge bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-bc1b52874122]

Also known as: Sumo, Sportsmatic

Specifications

Movement
Quartz
Case Material
Hardlex-Coated Steel
Case Width
45mm
Case Thickness
11.3mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Coin-Edge
Water Resistance
100m
Dial Color
Champagne
Jewels
36j
Frequency
21,600 bph
Power Reserve
60 hours
Year
1991

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