Seiko Cal. 4428 - 325

This Solar model from 1965 features a 36mm Gold-Plated case. The Bidirectional bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-8f3bf6e8cee5]

Also known as: Navigator

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

12.5mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Navy

Jewels

20j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1965

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