Seiko Cal. 5642 - 650

The Seiko 5642-650 represents an important milestone in Seiko's 1965 lineup. With its 21mm lug width and 8.5mm profile, it sits comfortably on most wrists. [seikata-wm-6ac5a3ed6432]

Also known as: Golden Tuna, Arnie

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

39mm

Case Thickness

8.5mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

18j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1965

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