Seiko Cal. 3813 - 935

The Seiko 3813-935 represents an important milestone in Seiko's 1969 lineup. With its 20mm lug width and 9.8mm profile, it sits comfortably on most wrists. [seikata-wm-ed57c6d71455]

Also known as: Sea Horse, Crown

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

37mm

Case Thickness

9.8mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

White

Jewels

17j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1969

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