Seiko Cal. 3857 - 512

This Hand-Winding model from 1981 features a 38mm Hardlex-Coated Steel case. The Bidirectional bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-30a16dbe6cff]

Also known as: Navigator, Arnie

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

9.3mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Champagne

Jewels

33j

Frequency

21,600 bph

Power Reserve

65 hours

Year

1981

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