Seiko Cal. 4528 - 590

This Spring Drive model from 1975 features a 41mm Two-Tone case. Powered by the 4528 caliber with 26j jewels beating at 36,000 bph, it delivers a 38 hours power reserve. [seikata-wm-40eeb259220f]

Also known as: Sumo, Pogue

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

41mm

Case Thickness

10.0mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

80m

Dial Color

Burgundy

Jewels

26j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1975

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