Seiko Cal. 5690 - 543

This Solar model from 1976 features a 37mm PVD Black case. With its 20mm lug width and 15.0mm profile, it sits comfortably on most wrists. [seikata-wm-f8929a5624fe]

Also known as: Samurai, Baby Tuna

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

37mm

Case Thickness

15.0mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Blue Sunburst

Jewels

32j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1976

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