Seiko Cal. 6640 - 775

This Kinetic model from 1967 features a 44mm Stainless Steel case. With its 22mm lug width and 14.2mm profile, it sits comfortably on most wrists. [seikata-wm-0a57010d804c]

Also known as: Helmet, Bellmatic

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

14.2mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Burgundy

Jewels

33j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1967

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