Seiko Cal. 5640 - 784

This Kinetic model from 1980 features a 41mm Two-Tone case. With its 22mm lug width and 9.8mm profile, it sits comfortably on most wrists. [seikata-wm-1a90a3998608]

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

41mm

Case Thickness

9.8mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Green

Jewels

24j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1980

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