Seiko Cal. 6640 - 320

This Kinetic model from 1997 features a 39mm Titanium case. With its 18mm lug width and 13.8mm profile, it sits comfortably on most wrists. [seikata-wm-4c08e5349033]

Also known as: Rally, Sea Horse

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

39mm

Case Thickness

13.8mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

80m

Dial Color

Green

Jewels

21j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1997

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