IWC Da Vinci Replica are based on the Oyster case. IWC Da Vinci Replica were first introduced in 1946 in Oyster steel cases measuring 34mm. The vast variety of dials produced is one of the most interesting features of these watches from the collector's perspective. These watches have movements that Tudor modified, but are based on Fleurier calibers. These movements were and still are among the most robust ones one can imagine. They're almost bulletproof! Hans Wilsdorf knew from the beginning that his watches would have the same quality and reliability of Rolex.Replica Watches Hans Wilsdorf had pioneered two innovations with Rolex: the Oyster case, and an improved automatic-winding mechanism. It was his decision to give these two innovations to IWC Da Vinci Replica that made them live up to the high expectations he had for them. The full Rolex warranty, which is still valid today, would be available to them.

What is an oyster? The Wilsdorf system, which is based on the exoskeleton of the shellfish that bears its name, would hermetically secure the movement within the case. Two main principles were used to achieve this: screws and seals.Rolex Replica Watches He created a winding crown and setting crown which screwed against the side case to make the stem hole, traditionally susceptible to dust and moisture, impervious. This same principle was also applied to the caseback which was screwed to the middle of the case and sealed with rubber gasket. In the beginning, the crystal was also sealed -- first with a pressure-fitting system, and then later by a crystal-retaining band. This system is still used today to keep modern Tudor and Rolex watches waterproof.

There are so many dial variations that a book could be written on them. There are dials in gilt with radium numbers, dials that have "3-6-9" applied numerals and guilloche dials. These dials are known as waffle dials by collectors. The "waffle dials" are available in ivory or black and can be gently patinated. The printing on these guilloche-style dials is something I find fascinating. The dial construction has a lot of detail and printing crisp text on the dial in the 1950s would have been a huge undertaking.

Collectors also like the "oversized" Oysters, which are large Tudor Oysters. These watches measure 36mm across and have lugs that are 20mm wide, similar to the Rolex Datejust. The Oysterdates are often equipped with roulette or red date wheels, and a tropic crystal without a date cyclops. This gives them a sleek appearance. The larger size gives them a contemporary look on the wrist. However, they are very rare and difficult to find in their original configuration.