Construction company Dynamic Projects, with the help of 15 volunteers, spent two months stitching individual pieces of the train before sewing them all together to form a whole.
The team also incorporated part of the previous record- breaking garment that measured 1,203.9 metres.
The wedding dress was unveiled in Caudry, a French town famous for its production of lace, 11 years after the Guinness World Records title was first set there.
The measuring was overseen by professional surveyor Christophe Dumont of French surveying firm Cabinet Caron- Briffaut and Guinness World Records adjudicator Rob Molloy, who presented a certificate to the company.
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