There is no mention of a reproduction being made on the Remington site:
http://www.remington.com/library/history/firearm_models/shotguns/model_1889.aspI assume they made it in 20 gauge so it would not be mistaken for an original.
Model 1889
Description: Outside hammer, double barrel shotgun
Introduction Year: 1889
Year Discontinued: 1908
Total Production: Approximately 135,000 +/-
Designer/Inventor: E. Remington & Sons
Action Type: Circular action hammers
Caliber/Gauge: 10, 12, and 16 gauge
Serial Number Blocks: 30,000 – 105,000
200,000 – 260,000
Serial numbers were re-assigned to the
200,000 block circa 1900.
# of Grades Offered: Grade 1 – Decarbonized steel barrels
Grade 2 – Fine twist barrels
Grade 3 – Damascus steel barrels, engraving
Grade 4 – Damascus steel barrels, better quality engraving, curly walnut stock
Grade 5 – Damascus steel barrels, extra engraving, selected curly walnut stock
Grade 6 – Extra fine quality Damascus steel barrels, scroll engraving, fine selected curly walnut stock
Grade 7 – Superior quality Damascus steel barrels, extra fine scroll engraving, elegant curly walnut stock
Pete