Seiko Cal. 6646 - 823

The Seiko 6646-823 represents an important milestone in Seiko's 1987 lineup. With its 18mm lug width and 9.4mm profile, it sits comfortably on most wrists. [seikata-wm-29f72c94fc40]

Also known as: Navigator, Sea Horse

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

43mm

Case Thickness

9.4mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Black

Jewels

26j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1987

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