Seiko Cal. 4596 - 677

This Spring Drive model from 1978 features a 39mm PVD Black case. With its 21mm lug width and 10.6mm profile, it sits comfortably on most wrists. [seikata-wm-d04d6718988e]

Also known as: Navigator

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

39mm

Case Thickness

10.6mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Blue Sunburst

Jewels

33j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1978

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