Seiko Cal. 5665 - 379

This Spring Drive model from 1978 features a 37mm Gold-Plated case. With its 20mm lug width and 13.6mm profile, it sits comfortably on most wrists. [seikata-wm-80b5d3111708]

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

13.6mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Cream

Jewels

33j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1978

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