American platinum gold enamel and diamond watch Circa 1900

Gold, platinum and enamel keyless lady’s brooch watch
–
A fine American platinum and 14 carat gold Art Nouveau brooch suspended lapel watch with blue guilloché enamel and diamond setting made by Marcus & Co., circa 1900. It has a jewelled mechanical manual winding movement, signed Marcus & Co. The white dial shows stylized Art Nouveau black Arabic numerals for the hours, an outer minute track, and ornate hands, also signed Marcus & Co. The watch is suspended from a gold and platinum scrolling brooch set with an old European cut diamond and pink and green enamelled leaves. This leads via a series of baton links embellished in blue and white enamel. The round 22 mm case has a reverse back cover decorated with vibrant blue guilloché enamel and a central floral rosette motif set with old cut diamonds.
–
Diameter: 22 mm
–
Weight: 18 g
–
Signed: Marcus & Co.
–
Marcus & Co. was founded in 1892 by William Elder Marcus in New York City. Renowned as one of America’s premier luxury jewellers of the Art Nouveau era, Marcus & Co. gained distinction for its masterful enamelling techniques, exquisite gem set lapel watches, and innovative floral designs that defined the height of American Gilded Age jewellery and horological craftsmanship.