Seiko Cal. 6640 - 139

This Automatic model from 1980 features a 35mm Stainless Steel case. It features a Silver dial protected by a Hardlex crystal and offers 160m of water resistance. [seikata-wm-6efcb0307a8b]

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

12.2mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

160m

Dial Color

Silver

Jewels

18j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1980

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