Seiko Cal. 6657 - 968

This Hand-Winding model from 1991 features a 44mm Two-Tone case. With its 22mm lug width and 8.4mm profile, it sits comfortably on most wrists. [seikata-wm-713168f19001]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

44mm

Case Thickness

8.4mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

70m

Dial Color

Blue Sunburst

Jewels

21j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1991

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