Seiko Cal. 4527 - 414

This Spring Drive model from 1978 features a 36mm Hardlex-Coated Steel case. Powered by the 4527 caliber with 20j jewels beating at 21,600 bph, it delivers a 72 hours power reserve. [seikata-wm-19bf14d93fea]

Also known as: Monster

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

8.2mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Navy

Jewels

20j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1978

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