Seiko Cal. 6646 - 351

The Seiko 6646-351 represents an important milestone in Seiko's 1984 lineup. With its 18mm lug width and 8.1mm profile, it sits comfortably on most wrists. [seikata-wm-4d295b38ecc2]

Also known as: Silverwave

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

43mm

Case Thickness

8.1mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Black

Jewels

30j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1984

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