Lot Essay
Reference 1803 was introduced by Rolex in 1961 and was one of the early models of Day-Date. The present watch is fitted with an extremely rare and sought after "SWISS" only dial which is possibly a transitional design during the period when Rolex was switching the luminous material used in its watches from radium to tritium in the early 1960s. Incredibly enough, it is fitted with a Japanese day disc, greatly increasing its rarity.