Seiko Cal. 3865 - 991

The Seiko 3865-991 represents an important milestone in Seiko's 1990 lineup. It features a Green dial protected by a Hardlex crystal and offers 30m of water resistance. [seikata-wm-91624143fbbe]

Also known as: Flighty

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

35mm

Case Thickness

9.1mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Green

Jewels

27j

Frequency

21,600 bph

Power Reserve

65 hours

Year

1990

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