Seiko Cal. 6632 - 651

Released in 1978, the Cal. 6632 with design code 651 was part of Seiko's domestic market collection. With its 18mm lug width and 8.6mm profile, it sits comfortably on most wrists. [seikata-wm-8fad251de923]

Also known as: Tuna

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

8.6mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Black

Jewels

32j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1978

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