Seiko Cal. 6399 - 781

This Spring Drive model from 1971 features a 39mm Titanium case. With its 22mm lug width and 11.7mm profile, it sits comfortably on most wrists. [seikata-wm-215290e09935]

Also known as: Bellmatic, Emperor

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

39mm

Case Thickness

11.7mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1971

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