Seiko Cal. 3811 - 920

The Seiko 3811-920 represents an important milestone in Seiko's 1991 lineup. With its 22mm lug width and 9.9mm profile, it sits comfortably on most wrists. [seikata-wm-44df01fc4c11]

Also known as: Sportsmatic

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

9.9mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

30m

Dial Color

White

Jewels

22j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1991

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