Seiko Cal. 5640 - 759

The 5640-759 is a sought-after Quartz piece from Seiko's golden era. The Rotating bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-41afeee85eb9]

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

14.1mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

90m

Dial Color

Green

Jewels

23j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1983

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