In conclusion, the caliber 8900 performs excellently. In my workshop, the watch I received for review averaged a gain of just 1 second per day over a 4-day test and demonstrated excellent values on the timing machine with an average daily rate of between 0 and 1 seconds and a delta of 7 seconds across all positions and 2 states of wind. So, what we all want to know is how it performs. The other impulse is received by an extra impulse jewel located on the roller of the balance wheel. The one in the center receives the impulse. The ones on the left and the right only carry out a locking function.
In the Co-axial escapement, the locking functions and impulse functions are separated. In the Swiss lever escapement, the pallet fork has two ruby stones each of which has a locking function and an impulse function. In order to explain the escapement’s function they always use animations and models so I thought I would include some photos of the different components alongside of their counterparts from a traditional Swiss lever escapement. One thing you won’t see in any of the flashy videos produced by AAA replica Omega watches are actual photos or videos of the Co-axial in action. We are now many generations removed from George Daniels’ original co-axial designs and from 1:1 Omega fake watches’ first (and failed) attempt at implementing the escapement into mass-produced watches and they have created a watch caliber with a co-axial escapement that is reliable and which performs with excellence. The increased efficiency and near elimination of lubrication in the escapement means less degradation in timekeeping performance over both the power reserve and service interval of the Omega replica watches for men. In Daniels’ original design he incorporated two escape wheels in order to separate these functions but as he made improvements he incorporated both wheels onto a single axle, hence the name: co-axial escapement.
The co-axial escapement separates the locking and impulse actions which allow the impulse to be delivered with almost no energy lost to sliding and almost entirely eliminates the need for lubrication. A considerable amount of energy is lost to friction as the escape wheel tooth slides across the pallet stone and lubrication is required. The geometry requires that the impulse be delivered to the balance via a sliding action. The Swiss lever escapement found in most mechanical watches is inefficient. For a much shorter explanation, any of the many videos Swiss made Omega super clone watches has produced will certainly suffice. The die-hard fan will want to hear about the co-axial escapement directly from the master himself, George Daniels, and for that, I recommend a 1-hour lecture he gave to the American Watchmakers-Clockmakers Institute which is available on their YouTube channel. Plenty has been written about the co-axial escapement so I just want to point you to a couple of good resources and give a quick overview. Lastly, of course, is the co-axial escapement. Watchmakers be aware: no adjustment is necessary (or possible)! The second advantage is that silicon is not malleable which means the hairspring won’t deform when it receives shocks. Thanks in part to the silicon balance wheel and hairspring, this watch exhibits almost no variation in rates when exposed to large magnetic fields up to 15,000 gausses. Silicon provides two distinct advantages: first, it is non-magnetic which makes it possible for this luxury replica Omega watches to meet the stringent requirements for resistance to magnetism that are a part of the METAS certification. When you eliminate the regulating pins, variations in balance amplitude will have less effect on the timekeeping. The free-sprung balance eliminates the need for regulating pins and once again means better timekeeping.
The top Omega copy watches also has a free-sprung balance with a silicon hairspring. The extended power reserve means it is less likely that you watch runs at low power, even if you take it off for a day. As the power reserve of the best Omega replica watches winds down the mainspring delivers less torque which can affect the timekeeping, especially at the very end of the power reserve. I think the biggest advantage of a longer power reserve is improved timekeeping. Of course, it is great to have a watch that will stay running for a long time, but for me, I don’t mind winding my watch and I’m active enough to keep an automatic watch wound. The caliber 8900 has two barrels which makes it possible for the cheap US fake Omega watches to store sufficient power to keep it running for 2½ days. Let’s start with the 60-hour power reserve.
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