Seiko Cal. 3813 - 764

The Seiko 3813-764 represents an important milestone in Seiko's 1977 lineup. With its 21mm lug width and 10.4mm profile, it sits comfortably on most wrists. [seikata-wm-a38be5cf6cb7]

Also known as: Samurai

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

35mm

Case Thickness

10.4mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

80m

Dial Color

Cream

Jewels

32j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1977

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