Seiko Cal. 3811 - 498

This Spring Drive model from 1980 features a 39mm Hardlex-Coated Steel case. With its 19mm lug width and 11.0mm profile, it sits comfortably on most wrists. [seikata-wm-bf06ab7aa2bd]

Also known as: Tuna, UFO

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

11.0mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

110m

Dial Color

Silver

Jewels

34j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1980

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