Seiko Cal. 4428 - 310

This Spring Drive model from 1987 features a 36mm Gold-Plated case. The Fixed bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-da4522596fd5]

Also known as: Navigator

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

8.4mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

160m

Dial Color

Green

Jewels

23j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1987

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