Rolex, a seed pearl watch pendant

Rolex, a seed pearl watch pendant, circa 1914, the circular white enamel dial with black enamel indicators and blued steel hands, to a case of spherical design, applied with dark blue enamel, intricately set with graduated half seed pearls, length 3cm including pendant hoop, manual winding movement signed Rolex, interior with British import hallmarks for gilt silver, numbered 593878, sponsor's mark W&D