Seiko Cal. 5621 - 690

This Spring Drive model from 1989 features a 46mm PVD Black case. Powered by the 5621 caliber with 25j jewels beating at 36,000 bph, it delivers a 67 hours power reserve. [seikata-wm-accf3a3c8ea7]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

46mm

Case Thickness

15.9mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

30m

Dial Color

Silver

Jewels

25j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1989

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