Seiko Cal. 6688 - 140

The Seiko 6688-140 represents an important milestone in Seiko's 1997 lineup. With its 20mm lug width and 9.7mm profile, it sits comfortably on most wrists. [seikata-wm-8accb469d0a9]

Also known as: Helmet, Navigator

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

41mm

Case Thickness

9.7mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Burgundy

Jewels

31j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1997

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