Seiko Cal. 6633 - 654

The Seiko 6633-654 represents an important milestone in Seiko's 1972 lineup. The Rotating bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-76f21f6568d7]

Also known as: Bullhead

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

41mm

Case Thickness

9.0mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

160m

Dial Color

Burgundy

Jewels

29j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1972

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