Seiko Cal. 3817 - 507

The Seiko 3817-507 represents an important milestone in Seiko's 1983 lineup. With its 18mm lug width and 15.4mm profile, it sits comfortably on most wrists. [seikata-wm-b80576cce7fb]

Also known as: Tuna, Silverwave

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

15.4mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Burgundy

Jewels

19j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1983

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