Seiko Cal. 0766 - 655

This Automatic model from 1974 features a 39mm Titanium case. It features a Green dial protected by a Acrylic crystal and offers 180m of water resistance. [seikata-wm-617d443e55e5]

Also known as: Helmet

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

39mm

Case Thickness

11.1mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Green

Jewels

25j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1974

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