Seiko Cal. 6666 - 637

Released in 1996, the Cal. 6666 with design code 637 was part of Seiko's domestic market collection. With its 18mm lug width and 12.6mm profile, it sits comfortably on most wrists. [seikata-wm-f063b7cb7dc6]

Also known as: Tuna, Arnie

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

12.6mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

150m

Dial Color

Burgundy

Jewels

34j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1996

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