Seiko Cal. 6678 - 308

This Spring Drive model from 1975 features a 40mm Gold-Plated case. With its 22mm lug width and 14.4mm profile, it sits comfortably on most wrists. [seikata-wm-ad944714d2ec]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

14.4mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Burgundy

Jewels

29j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1975

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