Seiko Cal. 6661 - 657

This Automatic model from 1968 features a 36mm Titanium case. The Rotating bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-e0c44743c314]

Also known as: Silverwave, Emperor

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

36mm

Case Thickness

11.7mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

130m

Dial Color

Black

Jewels

18j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1968

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