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A LADY'S 18K WHITE AND YELLOW GOLD "COULISSANTE" WRISTWATCH, BY RENE BOIVIN
With quartz movement, the circular mother-of-pearl dial within a polished yellow gold tilted chapter ring engraved with Roman numerals, the bezel with sliding yellow gold panels to reveal either ribbed white gold or brushed yellow gold, the back secured with six screws to the blue leather bracelet with gold deployant clasp, with Swiss assay marks (accompanied by eleven vari-coloured crocodile leather straps)
Dial, case and clasp signed by René Boivin, case nos. J-0170 18-007 (12)
With quartz movement, the circular mother-of-pearl dial within a polished yellow gold tilted chapter ring engraved with Roman numerals, the bezel with sliding yellow gold panels to reveal either ribbed white gold or brushed yellow gold, the back secured with six screws to the blue leather bracelet with gold deployant clasp, with Swiss assay marks (accompanied by eleven vari-coloured crocodile leather straps)
Dial, case and clasp signed by René Boivin, case nos. J-0170 18-007 (12)