Seiko Cal. 5630 - 940

Released in 1975, the Cal. 5630 with design code 940 was part of Seiko's domestic market collection. With its 19mm lug width and 15.1mm profile, it sits comfortably on most wrists. [seikata-wm-4cc7fdd3a6a9]

Also known as: Golden Tuna, Arnie

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

15.1mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

100m

Dial Color

Cream

Jewels

24j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1975

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