Seiko Cal. 6640 - 260

The Seiko 6640-260 represents an important milestone in Seiko's 1967 lineup. With its 22mm lug width and 15.0mm profile, it sits comfortably on most wrists. [seikata-wm-60bf6649dbc7]

Also known as: Rally, World Timer

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

46mm

Case Thickness

15.0mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

160m

Dial Color

Burgundy

Jewels

34j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1967

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