A rare 18ct gold, peridot and diamond 'Spring Ring Watch', no. 83 from the 'About time Collection', for Omega by Andrew Grima, 1969, centring a bezel-set, oval faceted peridot 'glass' bordered by a line of brilliant-cut diamonds framed by a textured surround and hoop, signed Grima, maker's mark for Omega, manual, cal. 484, 17 jewels, movement no.: 26'584'837, maker's mark HJCo for Haller jewellery Company, British hallmarks for London, 1969., ring inner diameter approximately 20 mm, size U, accompanied by time collection, 1970 original index and price list. Other Notes: Andrew Grima's (1921-2007) innovative and adventurous jewellery designs won him prestigious commissions from numerous patrons including Jacqueline Onassis, Princess Margaret and Hm Queen Elizabeth II along with several awards including 13 de Beers diamond international awards and a Royal Warrant, Intrigued by Grima's bold and visionary approach to jewellery design, in 1969 Omega commissioned him to design a collection of 85 jewellery watches in a resolutely modern style. Titled 'About Time', the collection challenged Grima to integrate the precise watch movement into his amorphous designs along with using a gemstone in place of a watch glass, an innovation that he hoped would allow the wearer to see 'Time through stone'. A unifying theme of the collection was the idea that each watch would be unique, and that the major feature would be the dial that would not be decorated in any way, nor would it bear indexes, this spring ring watch is an extraordinary example of 1970s modernist jewellery. Amply demonstrating Grima's flair for texture and his unique understanding of materials, the ring watch exemplifies Grima's achievements in this seminal prestigious collection. It is these unique features that even today remain unsurpassed for their ingenuity, audacity, and powerful, sculptural design.