By design, the 4130’s vertically coupled approach enables absolutely precise starts and stops of the chronograph seconds hand. When started, stopped, or reset, no unwanted jitters are seen on any of the watch’s hands. The vertical clutch also allows the chronograph to run continuously for extended periods, with no impact on timekeeping accuracy. Understanding Rolex’s longstanding, noble pursuit of maximum timekeeping accuracy, their decision to use a vertical clutch makes sense.
subir foto Rolex used this freed up space to increase the size of the mainspring barrel – providing 72 hours of power reserve versus the caliber 4030’s 54 hours.
- The 4130 has roughly 20% fewer parts than the 4030, which yes, is a good thing.
- The 4130’s mainspring can be replaced without taking the movement out of the case. A 4030, on the other hand, requires a full overhaul in order to replace the mainspring.
- The 4130’s automatic winding mechanism winds 68% more efficiently than the 4030’s, and is equipped with more reliable reversers compared with the 4030, which uses a complicated reverser that is prone to sticking.
