Seiko Cal. 6670 - 277

This Spring Drive model from 1980 features a 46mm Titanium case. With its 20mm lug width and 14.7mm profile, it sits comfortably on most wrists. [seikata-wm-00ec49b71d27]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

46mm

Case Thickness

14.7mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

30m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1980

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