Seiko Cal. 3813 - 636

This Automatic model from 1967 features a 36mm PVD Black case. With its 21mm lug width and 13.6mm profile, it sits comfortably on most wrists. [seikata-wm-ff36aa4f0957]

Also known as: Bellmatic, Navigator

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

36mm

Case Thickness

13.6mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

70m

Dial Color

Black

Jewels

24j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1967

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