Seiko Cal. 3840 - 527

This Spring Drive model from 1982 features a 43mm Titanium case. It features a Blue Sunburst dial protected by a Hardlex crystal and offers 110m of water resistance. [seikata-wm-fcb86e6752c4]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

43mm

Case Thickness

10.5mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Blue Sunburst

Jewels

35j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1982

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