Patek Philippe. A fine and rare large rectangular curved hinged gold wristwatch with "explosion" numerals

Patek Philippe. A fine and rare large rectangular curved hinged gold wristwatch with "explosion" numerals
Signed Patek, Philippe & Co., Genève, movement no. 194'376, case no. 288'330, manufactured in 1921
Cal. 10''' circular gilt-finished mechanical jewelled lever movement, bimetallic compensation balance, micrometer regulator, wolf's tooth winding, silvered dial, large black enameled Dauphine "explosion" numerals, blued steel spade hands, inner railway minute divisions, large rectangular case, wide bezel, curved sides, small straight wire lugs, hinged curved back, 18K gold Patek Philippe buckle, case signed and also engraved with movement number 194'376, dial and movement signed
25.7 mm. wide, 37 mm. length & 43.5 mm. overall length