Seiko Cal. 4427 - 665

This Solar model from 1968 features a 45mm Gold-Plated case. Powered by the 4427 caliber with 25j jewels beating at 21,600 bph, it delivers a 48 hours power reserve. [seikata-wm-a12d21b15d8e]

Also known as: Tuna, Silverwave

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

15.5mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Burgundy

Jewels

25j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1968

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