Seiko Cal. 4428 - 649

The 4428-649 is a sought-after Solar piece from Seiko's golden era. Powered by the 4428 caliber with 20j jewels beating at 21,600 bph, it delivers a 70 hours power reserve. [seikata-wm-9dd4e3232501]

Also known as: Shogun, Sportsmatic

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

15.7mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Champagne

Jewels

20j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1974

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