Seiko Cal. 3831 - 506

The Seiko 3831-506 represents an important milestone in Seiko's 1992 lineup. With its 20mm lug width and 15.7mm profile, it sits comfortably on most wrists. [seikata-wm-afe4ff60478c]

Also known as: Tuna, Helmet

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

37mm

Case Thickness

15.7mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Cream

Jewels

29j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1992

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