Seiko Cal. 3860 - 440

This Spring Drive model from 1980 features a 39mm Titanium case. It features a Blue Sunburst dial protected by a Mineral crystal and offers 130m of water resistance. [seikata-wm-a7db9b87c075]

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

39mm

Case Thickness

15.2mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Blue Sunburst

Jewels

29j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1980

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