The
link last time such a watch came up at auction was back in 2002 when it sold at Antiquorum for just over CHF 1.7 million. That watch had case no. 306201. This particular piece bears case no. 306193 which as mentioned was previously
link unknown other than by the private collector who owned it of course. According to Phillips this is the earliest made 2523 Eurasia dial variant with a production date of 1953 and
link a sales record of December 7 1954.