Seiko Cal. 6633 - 143

The Seiko 6633-143 represents an important milestone in Seiko's 1988 lineup. With its 21mm lug width and 10.4mm profile, it sits comfortably on most wrists. [seikata-wm-097acde61499]

Also known as: Bullhead

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

35mm

Case Thickness

10.4mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Blue Sunburst

Jewels

26j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1988

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