Seiko Cal. 6381 - 940

This Spring Drive model from 1975 features a 40mm Titanium case. With its 19mm lug width and 13.3mm profile, it sits comfortably on most wrists. [seikata-wm-b3c348fe215d]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

40mm

Case Thickness

13.3mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1975

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