Seiko Cal. 4428 - 409

This Solar model from 1972 features a 41mm Gold-Plated case. The Rotating bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-53fa751958f8]

Also known as: Sumo

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

9.4mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

70m

Dial Color

Navy

Jewels

21j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1972

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