Seiko Cal. 5657 - 719

This Spring Drive model from 1996 features a 36mm Gold-Plated case. With its 20mm lug width and 8.0mm profile, it sits comfortably on most wrists. [seikata-wm-85d776de0cc5]

Also known as: Helmet, Navigator

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

8.0mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Blue Sunburst

Jewels

18j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1996

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