Seiko Cal. 6657 - 447

This Hand-Winding model from 1975 features a 36mm Titanium case. The Inner Rotating bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-2995f5fdebbe]

Also known as: Baby Tuna, Arnie

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

36mm

Case Thickness

11.9mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Champagne

Jewels

24j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1975

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