Seiko Cal. 5644 - 870

This Spring Drive model from 1992 features a 35mm PVD Black case. With its 21mm lug width and 15.2mm profile, it sits comfortably on most wrists. [seikata-wm-6862f0f0fa33]

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

35mm

Case Thickness

15.2mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Black

Jewels

34j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1992

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