Seiko Cal. 5647 - 688

This Spring Drive model from 1975 features a 38mm PVD Black case. With its 21mm lug width and 12.4mm profile, it sits comfortably on most wrists. [seikata-wm-2224ad73c1e6]

Also known as: Rally, Crown

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

38mm

Case Thickness

12.4mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Champagne

Jewels

25j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1975

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