Seiko Cal. 6678 - 254

This Spring Drive model from 1970 features a 34mm Gold-Plated case. It features a Burgundy dial protected by a Sapphire crystal and offers 30m of water resistance. [seikata-wm-6c3737d37477]

Also known as: Tuna, Bellmatic

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

12.6mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

30m

Dial Color

Burgundy

Jewels

17j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1970

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