Seiko Cal. 4431 - 958

This Spring Drive model from 1984 features a 46mm Two-Tone case. Powered by the 4431 caliber with 25j jewels beating at 21,600 bph, it delivers a 42 hours power reserve. [seikata-wm-48bcabebaec4]

Also known as: Pogue, Silverwave

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

46mm

Case Thickness

8.3mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

190m

Dial Color

Cream

Jewels

25j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1984

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