Seiko Cal. 6641 - 617

This Spring Drive model from 1981 features a 45mm Gold-Plated case. It features a Green dial protected by a Hardlex crystal and offers 170m of water resistance. [seikata-wm-aec21bdc02a1]

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

10.7mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

170m

Dial Color

Green

Jewels

22j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1981

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