Seiko Cal. 4587 - 634

This Spring Drive model from 1997 features a 43mm PVD Black case. Powered by the 4587 caliber with 26j jewels beating at 28,800 bph, it delivers a 47 hours power reserve. [seikata-wm-5bd9df42f5d2]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

43mm

Case Thickness

15.1mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

90m

Dial Color

Green

Jewels

26j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1997

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