Seiko Cal. 6659 - 423

Released in 1972, the Cal. 6659 with design code 423 was part of Seiko's domestic market collection. With its 20mm lug width and 8.2mm profile, it sits comfortably on most wrists. [seikata-wm-7cfaf7cba20c]

Also known as: Tuna, Silverwave

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

44mm

Case Thickness

8.2mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

150m

Dial Color

Burgundy

Jewels

29j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1972

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