Seiko Cal. 6677 - 306

This Hand-Winding model from 1967 features a 34mm PVD Black case. With its 19mm lug width and 14.3mm profile, it sits comfortably on most wrists. [seikata-wm-592859f55703]

Also known as: Sumo, World Timer

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

34mm

Case Thickness

14.3mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

33j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1967

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