Seiko Cal. 5668 - 688

Released in 1981, the Cal. 5668 with design code 688 was part of Seiko's domestic market collection. With its 19mm lug width and 10.0mm profile, it sits comfortably on most wrists. [seikata-wm-53bbb39bf5e5]

Also known as: Helmet, Goldfeather

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

10.0mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Silver

Jewels

31j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1981

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