Seiko Cal. 3817 - 435

The Seiko 3817-435 represents an important milestone in Seiko's 1973 lineup. The Bidirectional bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-8fb8d9ac1d8a]

Also known as: Sportsmatic

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

40mm

Case Thickness

10.9mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Champagne

Jewels

24j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1973

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