Seiko Cal. 6647 - 601

The Seiko 6647-601 represents an important milestone in Seiko's 1966 lineup. With its 21mm lug width and 8.8mm profile, it sits comfortably on most wrists. [seikata-wm-07632419f7b0]

Also known as: Tuna, Emperor

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

35mm

Case Thickness

8.8mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

120m

Dial Color

Green

Jewels

23j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1966

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