Seiko Cal. 3817 - 216

The Seiko 3817-216 represents an important milestone in Seiko's 1966 lineup. The Inner Rotating bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-06f410112337]

Also known as: Navigator, Emperor

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

36mm

Case Thickness

15.7mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Silver

Jewels

17j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1966

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