Seiko Cal. 6678 - 833

This Spring Drive model from 1974 features a 44mm Two-Tone case. With its 22mm lug width and 12.5mm profile, it sits comfortably on most wrists. [seikata-wm-df423cc5d3f7]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

44mm

Case Thickness

12.5mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Silver

Jewels

21j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1974

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