Seiko Cal. 6646 - 138

The Seiko 6646-138 represents an important milestone in Seiko's 1999 lineup. With its 21mm lug width and 12.5mm profile, it sits comfortably on most wrists. [seikata-wm-40255caac058]

Also known as: Rally, Crown

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

36mm

Case Thickness

12.5mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

160m

Dial Color

Black

Jewels

32j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1999

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