Seiko Cal. 6636 - 734

The Seiko 6636-734 represents an important milestone in Seiko's 1973 lineup. The Bidirectional bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-6eaff484eef2]

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

9.2mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Green

Jewels

18j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1973

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