Seiko Cal. 6687 - 613

This Spring Drive model from 1966 features a 36mm PVD Black case. The Fixed bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-aadf8d6677e6]

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

36mm

Case Thickness

12.0mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

190m

Dial Color

Cream

Jewels

21j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1966

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