Seiko Cal. 4528 - 359

The Seiko 4528-359 represents an important milestone in Seiko's 1978 lineup. The Fixed bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-55f22cce91b3]

Also known as: Sumo, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

13.9mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

110m

Dial Color

Champagne

Jewels

34j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1978

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