Seiko Cal. 3863 - 934

This Automatic model from 1987 features a 44mm Titanium case. Powered by the 3863 caliber with 28j jewels beating at 21,600 bph, it delivers a 49 hours power reserve. [seikata-wm-0cd04f8b1507]

Also known as: Tuna

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

44mm

Case Thickness

10.7mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

90m

Dial Color

Navy

Jewels

28j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1987

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