Seiko Cal. 6643 - 252

The Seiko 6643-252 represents an important milestone in Seiko's 1996 lineup. With its 22mm lug width and 8.6mm profile, it sits comfortably on most wrists. [seikata-wm-0c8cc24dfb70]

Also known as: Helmet, Sea Horse

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

8.6mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Black

Jewels

36j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1996

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