Seiko Cal. 3813 - 499

The Seiko 3813-499 represents an important milestone in Seiko's 1967 lineup. The Inner Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-a287ac3918a9]

Also known as: Helmet, Rally

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

40mm

Case Thickness

13.1mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Cream

Jewels

21j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1967

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