Seiko Cal. 5641 - 764

The 5641-764 is a sought-after Quartz piece from Seiko's golden era. With its 21mm lug width and 15.4mm profile, it sits comfortably on most wrists. [seikata-wm-cf4c284a2bb1]

Also known as: Sea Horse

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

39mm

Case Thickness

15.4mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Champagne

Jewels

24j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1966

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