Seiko Cal. 3817 - 454

The Seiko 3817-454 represents an important milestone in Seiko's 1976 lineup. With its 18mm lug width and 9.6mm profile, it sits comfortably on most wrists. [seikata-wm-fda77034e60d]

Also known as: World Timer

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

45mm

Case Thickness

9.6mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Cream

Jewels

34j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1976

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