Seiko Cal. 0746 - 681

This Spring Drive model from 1981 features a 40mm Stainless Steel case. It features a Green dial protected by a Acrylic crystal and offers 190m of water resistance. [seikata-wm-09d404e7e51a]

Also known as: Helmet, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

15.2mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Green

Jewels

27j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1981

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