Seiko Cal. 6657 - 865

The Seiko 6657-865 represents an important milestone in Seiko's 1978 lineup. The Fixed bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-fb5ec8e98696]

Also known as: Navigator

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

12.9mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

190m

Dial Color

Cream

Jewels

18j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1978

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