Seiko Cal. 0746 - 271

This Spring Drive model from 1968 features a 41mm Hardlex-Coated Steel case. It features a Navy dial protected by a Acrylic crystal and offers 180m of water resistance. [seikata-wm-8685408c6926]

Also known as: Helmet, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

14.2mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Navy

Jewels

25j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1968

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