Seiko Cal. 4447 - 721

This Solar model from 1983 features a 45mm Hardlex-Coated Steel case. Powered by the 4447 caliber with 20j jewels beating at 21,600 bph, it delivers a 70 hours power reserve. [seikata-wm-a2cfa39020f0]

Also known as: Samurai, Goldfeather

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

13.2mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Silver

Jewels

20j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1983

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