Seiko Cal. 3813 - 912

Released in 1976, the Cal. 3813 with design code 912 was part of Seiko's domestic market collection. With its 20mm lug width and 12.0mm profile, it sits comfortably on most wrists. [seikata-wm-c81ed6dc54c8]

Also known as: Sea Horse

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

46mm

Case Thickness

12.0mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Champagne

Jewels

20j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1976

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