Seiko Cal. 5649 - 874

This Spring Drive model from 1971 features a 43mm Two-Tone case. With its 20mm lug width and 14.2mm profile, it sits comfortably on most wrists. [seikata-wm-663ecd38786d]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

43mm

Case Thickness

14.2mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Blue Sunburst

Jewels

20j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1971

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