Seiko Cal. 4429 - 984

This Spring Drive model from 1988 features a 35mm Two-Tone case. Powered by the 4429 caliber with 28j jewels beating at 36,000 bph, it delivers a 38 hours power reserve. [seikata-wm-182e6f86842a]

Also known as: Sportsmatic, Crown

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

35mm

Case Thickness

13.0mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Cream

Jewels

28j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1988

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