Seiko Cal. 6657 - 826

The Seiko 6657-826 represents an important milestone in Seiko's 1971 lineup. The Coin-Edge bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-93a18be233ab]

Also known as: Navigator

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

38mm

Case Thickness

9.3mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Black

Jewels

20j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1971

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