Seiko Cal. 4528 - 306

This Hand-Winding model from 1980 features a 40mm Two-Tone case. Powered by the 4528 caliber with 21j jewels beating at 36,000 bph, it delivers a 69 hours power reserve. [seikata-wm-6e1c9fb0f841]

Also known as: Shogun, Crown

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

40mm

Case Thickness

11.0mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

70m

Dial Color

Navy

Jewels

21j

Frequency

36,000 bph

Power Reserve

69 hours

Year

1980

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