Servicing the Rolex Cosmograph
This Rolex Cosmograph Chronograph underwent a complete service and repair to restore its mechanical performance. The movement was fully disassembled, cleaned, and carefully inspected, with worn components replaced as necessary. The chronograph mechanism was adjusted for smooth engagement and accurate reset, and the entire movement was lubricated with high-quality synthetic oils. The case was given only minimal polishing, preserving original edges, finish, and character. If needed, the case tube was replaced to ensure a secure crown fit and proper water resistance. After timing and regulation, the watch was reassembled and tested, running accurately and reliably while maintaining its original vintage appeal.
For more information on initiating the repair of your Rolex see getting started, and additional information on rolex servicing in general. Further reading: Choosing where to have your watch repaired.
Disassembly Before Cleaning
Reassembly
Rolex Cosmograph History
The Rolex released its iconic Chronograph in the mid 1960s and carried the “Cosmograph” name. Why Cosmograph? Well, we do know that Rolex released the model 6062 (dubbed the Cosmograph) in the 1950s and it was the first automatic triple calendar moon phase watch in the classic oyster case. But when the 6062 was discontinued the name was put on the shelf and re-emerged on the “Daytona” chronograph. Why Rolex recycled a rather astronomical name to their chronograph I’m not really sure. If any readers know, please send me an email. It is powered by Rolex’s version of the reliable Valjoux 72, the most notable change is the free-sprung balance. For more history see “Everything You Need to Know About Rolex’s Most Popular Watch”