Seiko Cal. 6674 - 187

Released in 1973, the Cal. 6674 with design code 187 was part of Seiko's domestic market collection. With its 19mm lug width and 14.5mm profile, it sits comfortably on most wrists. [seikata-wm-730fc290fe66]

Also known as: Tuna, Helmet

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

37mm

Case Thickness

14.5mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

100m

Dial Color

Blue Sunburst

Jewels

24j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1973

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