Seiko Cal. 7140 - 892

This Spring Drive model from 1979 features a 36mm Gold-Plated case. It features a Black dial protected by a Hardlex crystal and offers 30m of water resistance. [seikata-wm-77e16c8e1225]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

13.5mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

30m

Dial Color

Black

Jewels

28j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1979

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