Seiko Cal. 6636 - 186

Released in 1981, the Cal. 6636 with design code 186 was part of Seiko's domestic market collection. The Bidirectional bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-57eb98ad1f21]

Also known as: UFO

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

13.6mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Burgundy

Jewels

26j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1981

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