Seiko Cal. 4429 - 507

This Spring Drive model from 1981 features a 41mm Stainless Steel case. Powered by the 4429 caliber with 36j jewels beating at 36,000 bph, it delivers a 64 hours power reserve. [seikata-wm-523c1e6ce111]

Also known as: World Timer

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

9.0mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Burgundy

Jewels

36j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1981

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