Seiko Cal. 5666 - 688

This Spring Drive model from 1967 features a 37mm Stainless Steel case. With its 20mm lug width and 11.0mm profile, it sits comfortably on most wrists. [seikata-wm-191094082d60]

Also known as: Navigator, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

11.0mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

70m

Dial Color

Silver

Jewels

32j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1967

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