Seiko Cal. 4440 - 271

This Spring Drive model from 1965 features a 43mm Hardlex-Coated Steel case. Powered by the 4440 caliber with 31j jewels beating at 21,600 bph, it delivers a 47 hours power reserve. [seikata-wm-18fbf026f9c7]

Also known as: Crown

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

9.6mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Champagne

Jewels

31j

Frequency

21,600 bph

Power Reserve

47 hours

Year

1965

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