Seiko Cal. 5621 - 803

This Spring Drive model from 1979 features a 40mm Two-Tone case. With its 19mm lug width and 13.8mm profile, it sits comfortably on most wrists. [seikata-wm-19ea2542df9b]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

40mm

Case Thickness

13.8mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Black

Jewels

26j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1979

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