Seiko Cal. 4431 - 204

The Seiko 4431-204 represents an important milestone in Seiko's 1988 lineup. Powered by the 4431 caliber with 27j jewels beating at 36,000 bph, it delivers a 37 hours power reserve. [seikata-wm-ccad91b5d287]

Also known as: Emperor

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

43mm

Case Thickness

13.9mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

160m

Dial Color

Blue Sunburst

Jewels

27j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1988

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