Seiko Cal. 6636 - 451

The Seiko 6636-451 represents an important milestone in Seiko's 1973 lineup. The Bidirectional bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-ea7a7ac6ff91]

Also known as: UFO, Crown

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

34mm

Case Thickness

13.8mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Champagne

Jewels

35j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1973

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