Seiko Cal. 6681 - 645

The Seiko 6681-645 represents an important milestone in Seiko's 1965 lineup. With its 21mm lug width and 8.7mm profile, it sits comfortably on most wrists. [seikata-wm-f3b881428410]

Also known as: Flighty

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

43mm

Case Thickness

8.7mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Silver

Jewels

23j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1965

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