Seiko Cal. 6651 - 707

This Hand-Winding model from 1966 features a 42mm Titanium case. With its 21mm lug width and 11.6mm profile, it sits comfortably on most wrists. [seikata-wm-69a5b27be89c]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

42mm

Case Thickness

11.6mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

200m

Dial Color

Navy

Jewels

17j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1966

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