Seiko Cal. 6637 - 180

The Seiko 6637-180 represents an important milestone in Seiko's 1977 lineup. The Rotating bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-dffd8daa8ac9]

Also known as: Pogue, Flighty

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

35mm

Case Thickness

12.1mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

200m

Dial Color

Burgundy

Jewels

32j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1977

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