Seiko Cal. 6654 - 366

The Seiko 6654-366 represents an important milestone in Seiko's 1968 lineup. With its 20mm lug width and 9.5mm profile, it sits comfortably on most wrists. [seikata-wm-47d47c2d8004]

Also known as: UFO

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

43mm

Case Thickness

9.5mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Burgundy

Jewels

32j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1968

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