Seiko Cal. 0742 - 718

This Spring Drive model from 1971 features a 40mm Hardlex-Coated Steel case. It features a Champagne dial protected by a Acrylic crystal and offers 40m of water resistance. [seikata-wm-87afa9ee6799]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

11.2mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Champagne

Jewels

17j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1971

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