勞力士，罕有及獨特，18k金自動上弦腕錶，配中心秒針、星期、日曆顯示及日文星期盤，“Day-Date”，型號1803，約1962年製

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.