Seiko Cal. 6659 - 257

This Spring Drive model from 1967 features a 44mm Titanium case. The Rotating bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-402ea65f2233]

Also known as: Helmet, UFO

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

44mm

Case Thickness

15.5mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

120m

Dial Color

Blue Sunburst

Jewels

26j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1967

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