Seiko Cal. 6647 - 828

The Seiko 6647-828 represents an important milestone in Seiko's 1971 lineup. With its 19mm lug width and 10.0mm profile, it sits comfortably on most wrists. [seikata-wm-536b48e6c954]

Also known as: Rally, Golden Tuna

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

36mm

Case Thickness

10.0mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

60m

Dial Color

Cream

Jewels

25j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1971

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