Seiko Cal. 6647 - 723

The Seiko 6647-723 represents an important milestone in Seiko's 1982 lineup. The Rotating bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-4b9174e8dc4b]

Also known as: Rally, Sea Horse

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

11.2mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

30m

Dial Color

White

Jewels

36j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1982

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