Seiko Cal. 6634 - 756

The Seiko 6634-756 represents an important milestone in Seiko's 1979 lineup. With its 22mm lug width and 9.5mm profile, it sits comfortably on most wrists. [seikata-wm-a2343ae18cda]

Also known as: Tuna, Baby Tuna

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

43mm

Case Thickness

9.5mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Cream

Jewels

36j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1979

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