Seiko Cal. 4490 - 402

This Spring Drive model from 1987 features a 35mm Titanium case. Powered by the 4490 caliber with 32j jewels beating at 21,600 bph, it delivers a 40 hours power reserve. [seikata-wm-cd5b67594fb5]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

35mm

Case Thickness

10.9mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Champagne

Jewels

32j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1987

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