Seiko Cal. 6637 - 168

The Seiko 6637-168 represents an important milestone in Seiko's 1966 lineup. The Coin-Edge bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-a5b4d3e3ab09]

Also known as: Crown

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

41mm

Case Thickness

8.3mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Blue Sunburst

Jewels

21j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1966

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