Seiko Cal. 6646 - 657

The Seiko 6646-657 represents an important milestone in Seiko's 1973 lineup. The Fixed bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-596d66421736]

Also known as: Crown

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

34mm

Case Thickness

10.0mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

200m

Dial Color

Champagne

Jewels

19j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1973

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