Cf. Daniela Mascetti & Amanda Triossi,"Bulgari", Leonardo Arte, Milan, 1996, page 108: "Celtica jewels of 1993 were inspired by Celtic bronze bracelets or anklets dating to the 3rd Century B.C.."

Christie's Geneva, Magnificent Jewels, 12 May 1988, lot 576 for a rock crystal and diamond bangle by Cartier, from the estate of Gloria Swanson, the Queen of the silent movie, which has a similar mechanism
A similar bracelet was worn by actress Sharon Stone in the highly acclaimed 1995 Martin Scorsese film "Casino".