Seiko Cal. 6690 - 673

This Spring Drive model from 1965 features a 39mm Two-Tone case. With its 18mm lug width and 13.8mm profile, it sits comfortably on most wrists. [seikata-wm-3361d911b946]

Also known as: Arnie

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

39mm

Case Thickness

13.8mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

50m

Dial Color

Blue Sunburst

Jewels

34j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1965

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