Details
Round sapphires, round diamonds, sterling silver and 18k yellow gold (French marks), circa 1975, signed R. Boivin, maker's mark (Yves Galtié), brown René Boivin case, please note the bracelet features a sliding mechanism

Cailles & Salit, 2019: Copy of Letter of Authenticity

Size/Dimensions: inner circumference 15.2 cm (6 in)
Gross Weight: 88.5 grams
Provenance
Christie's, Geneva, 12 November 2019, Sale 17436, Lot 109
Literature
Cf. F. Cailles, René Boivin Joaillier, Paris, Éditions de l'Amateur, 1994, p. 364, 367
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Lot Essay

This René Boivin ‘Coulissant’ Bangle’s intelligent design features a sliding mechanism instantly transforming it from day to night wear. When closed, the bangle is a minimalist design of alternating yellow gold and sterling silver segments. When the sliding silver panels are opened, a dazzling array of sapphires and diamonds is revealed. The wearer is left with a transformable jewel befitting numerous settings.

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