Swiss ultra-thin open faced pocket watch Circa 1920-1925

Gold open faced pocket watch by Meylan Watch Co.
–
A Swiss gold ultra-thin open faced pocket watch, retailed by Tiffany & Co., circa 1920-1925. Accompanied by a fitted box, signed 14-carat yellow gold chain and mechanical pencil insert in a two-blade penknife.
Smooth 18-carat yellow gold case. Silvered dial with Arabic numerals, outer minutes track, extra seconds, and gold hands. Ultra-thin, rhodium-plated movement with going barrel, straight-line lever escapement, cut compensated balance, blued steel flat hairspring, and five adjustments. Dial, case and movement signed.
–
Diameter: 44 mm
–
Signed: Tiffany & Co.