Seiko Cal. 6634 - 855

The Seiko 6634-855 represents an important milestone in Seiko's 1975 lineup. With its 22mm lug width and 14.5mm profile, it sits comfortably on most wrists. [seikata-wm-7b39c1144420]

Also known as: Bullhead, Rally

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

14.5mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Cream

Jewels

21j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1975

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