Seiko Cal. 3811 - 990

This Automatic model from 1999 features a 43mm Two-Tone case. Powered by the 3811 caliber with 27j jewels beating at 21,600 bph, it delivers a 37 hours power reserve. [seikata-wm-e272eceee7ba]

Also known as: Bullhead, Sportsmatic

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

43mm

Case Thickness

9.5mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Burgundy

Jewels

27j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1999

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