Seiko Cal. 4431 - 663

This Automatic model from 1990 features a 35mm Hardlex-Coated Steel case. Powered by the 4431 caliber with 29j jewels beating at 21,600 bph, it delivers a 58 hours power reserve. [seikata-wm-a651d49e54be]

Also known as: Monster, Sea Horse

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

12.7mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

190m

Dial Color

Cream

Jewels

29j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1990

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