Seiko Cal. 6627 - 381

This Spring Drive model from 1975 features a 37mm Hardlex-Coated Steel case. It features a Silver dial protected by a Acrylic crystal and offers 200m of water resistance. [seikata-wm-4a84e388933a]

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

9.7mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Silver

Jewels

22j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1975

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