Seiko Cal. 3891 - 663

This Automatic model from 1966 features a 39mm Titanium case. It features a Green dial protected by a Mineral crystal and offers 180m of water resistance. [seikata-wm-1feec14833f9]

Also known as: Silverwave, Arnie

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

39mm

Case Thickness

8.5mm

Lug Width

22mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

180m

Dial Color

Green

Jewels

33j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1966

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