Very fine, rare and important, hunting-cased, 14K yellow gold keyless pocket chronometer, one of a series of 300 pieces made in 1921.

Cal. 43.15 S "Very Best" The present watch cost 1085 Swiss francs in 1929. By way of comparison, that same year Tiffany & Co. sold a Patek Philippe minute-repeating perpetual calendar pocket watch with moon phases, split-second chronograph and 30-minute recorder for 2835 Swiss francs, and a standard 18K gold hunting-cased pocket watch with 20''' movements could be bought for 385 Swiss francs. The fact that this watch cost nearly 40% as much as a highly complicated Patek Philippe and over four times as much as that company's standard production is due to the cost of manufacturing such a high-precision movement. Precision movements are made to much smaller mechanical tolerances than standard watch movements and often take as long to manufacture and regulate as complicated movements. Precision watches were also prized possessions and were often reserved for the manufacturer's best clients. The "Very Best" grade replaced the "DDR" as Omega's highest quality Chronometer movement in July 1922. This calibre was made in 600 examples, 300 Lépine and 300 "savonnette". The term "Very Best" was trademarked by Omega for dials, cases, and movements, in 1904.