Considered one of the most iconic models created by Patek Philippe, the Ref. 2499/100 Fourth Series which retailed at Tiffany & Co. is estimated to fetch between £215 000-350 000. The watch was made circa 1980, and is a most beautiful piece in 18 carat yellow gold with a round button chronograph, 30-minute register, perpetual calendar and moon phases.

medium_359 Estimate: £7 000-14 000

The star lot of the sale is this Jaeger LeCoultre Ref. 201 Early Steel Reverso retailed by GolayFils & Stahl. In a rather exciting tale, the watch once belonged to General Douglas MacArthur, who was most recognised in his career for his command of the Allied forces in the Pacific during World War II. The piece was made circa 1935 and was consigned by General MacArthur's descendants.

medium_181 Estimate £150 000- £213 000

This Magnificent and Historic Unique Tourbillon Watch, which was formerly part of the Patek Philippe private museum collection, will also be going under the gavel. It is one of the world's most accurate and mechanical precision watches and dates back to the early 20th century. It won the observatory first-prize, once in 1929 with a record-breaking score of 834 points and then again in 1934. This piece will include a comprehensive collection of daily testing records between 1928 and 1952.

medium_384 Estimate £107 000- 177 000

In the wake of the Royal Birth, another splendid pocket watch will be on offer, this time with a royal connection. This Louis Audemars for Leroy Highly Important and Ultra Complicated Watch with 11 Complications Presented By His Majesty King Alphonse XIII of Spain to His Excellency Vincente Santamaria De Paredes.

Count Vicente Santamaria De Paredes was a Spanish lawyer and politician who was appointed by the Queen Regent Marie-Christine of Habsburg Lorraine Teschen in 1901 as a tutor and professor of law and social sciences to her son, King Alphonse XIII (1886-1941).On June 26th, 1920, the King granted his former tutor the title "Count Santamaria De Paredes" as reward for"long life of important and multiple services given to the science and to the state." The monarch presented Santamaria this important pocket watch and a photo with his dedication" in proof of fondness of his constitutional loving disciple."

Check out the rest of the sale here.