Seiko Cal. 6178 - 251

This Spring Drive model from 1973 features a 37mm Gold-Plated case. It features a Champagne dial protected by a Sapphire crystal and offers 30m of water resistance. [seikata-wm-300568c2c405]

Also known as: Tuna, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

14.5mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Champagne

Jewels

20j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1973

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