A Rolex Prince wristwatch, manual, Prince Brancard duo dial, observatory quality fifteen rubies timed in six positions, 9ct white and yellow gold flared case and black leather bands, case reference 971, case number 5335, movement number 7928, case length 38 mm, with original Rolex box signed 'Rolex Precision Watch 25 World Records Geneve Suisse', circa1940. See illustration.