Seiko Cal. 6687 - 873

This Hand-Winding model from 1981 features a 35mm Stainless Steel case. With its 21mm lug width and 10.6mm profile, it sits comfortably on most wrists. [seikata-wm-d1589b122d87]

Also known as: Helmet, World Timer

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

10.6mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

170m

Dial Color

Cream

Jewels

28j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1981

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