A mother-of-pearl, coloured diamond and diamond 'Sunrise' quartz wristwatch, by Jahan

A mother-of-pearl, coloured diamond and diamond 'Sunrise' quartz wristwatch, by Jahan
The mother-of-pearl dial of scalloped design, with pavé diamond centre and surround, and Arabic quarters, to the pavé yellow diamond bezel and pavé diamond crown, to later added straps and diamond-set maker's buckle, case 43mm wide, yellow diamonds not tested for natural colour origin
Dial, case and buckle signed Jahan, case signed Sunrise, case no. 004