Seiko Cal. 4527 - 488

This Quartz model from 1972 features a 40mm Stainless Steel case. Powered by the 4527 caliber with 25j jewels beating at 21,600 bph, it delivers a 56 hours power reserve. [seikata-wm-2414f9b4dab9]

Also known as: Bellmatic, Navigator

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

13.8mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Green

Jewels

25j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1972

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