Seiko Cal. 6681 - 734

This Spring Drive model from 1978 features a 45mm Gold-Plated case. With its 21mm lug width and 10.5mm profile, it sits comfortably on most wrists. [seikata-wm-a2a51942af63]

Also known as: Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

10.5mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Green

Jewels

19j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1978

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