Seiko Cal. 5666 - 206

The Seiko 5666-206 represents an important milestone in Seiko's 1997 lineup. With its 19mm lug width and 10.4mm profile, it sits comfortably on most wrists. [seikata-wm-83e967c0e68f]

Also known as: Helmet

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

44mm

Case Thickness

10.4mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Silver

Jewels

35j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1997

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