Seiko Cal. 4431 - 825

This Quartz model from 1969 features a 43mm Two-Tone case. Powered by the 4431 caliber with 29j jewels beating at 21,600 bph, it delivers a 56 hours power reserve. [seikata-wm-78774895d838]

Also known as: Turtle, Baby Tuna

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

43mm

Case Thickness

13.8mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Silver

Jewels

29j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1969

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