- #Oris calibre 400 movement how to#
- #Oris calibre 400 movement full#
- #Oris calibre 400 movement series#
The weight does have a larger diameter allowing it to achieve the same moment of inertia as a smaller weight using less mass, but this weight falls short. In an effort to reduce the height of the movement, it would appear that Oris has chosen a weight with limited mass around its perimeter.
1 If this is the case, why do so many brands spend the extra money on more complicated bidirectional winding systems? Clearly, there must be advantages to a bidirectional winding system. Plenty of watch brands and horological textbooks indicate that unidirectional systems are equally as efficient as bidirectional winding systems but they have the added advantage of being simpler and made up of fewer parts. First, this watch has a unidirectional winding system winding in one direction and idling or “free-wheeling” in the other direction. It seems that the automatic winding mechanism on this watch is not as efficient as it needs to be (based both on my tests and on the experiences of some other owners.) There are two key factors in the design which contribute to this. But why? Fig 5 – The oscillating weight mounted to the movement It is however enough to both maintain and add approximately an additional day of reserve to the watch (your results may vary depending upon your level of activity.) Having run down 48 hours, one day on the final test only wound up the watch enough for it to run for 95 hours after removing it from the final test. Unfortunately, the quality control test demonstrated that a day of standard motion is not enough to fully wind the watch. This is important because it means that any issues with power reserve are a result of insufficient winding.
#Oris calibre 400 movement full#
In fact, I fully wound the stand-alone movement and observed that it ran for 125 hours before coming to a stop so we know that the watch is capable of storing enough energy and operates with sufficient efficiency to deliver the full 5-day power reserve with a little left in the tank. When manually winding this watch it takes more than 100 turns of the crown to fully wind it up, where most watches would be fully wound with about 40 turns of the crown. Before addressing this I think it is important to note that it takes a lot to fully wind a double barrel (5-day power reserve) watch. This 7-day test brought to light one of the first complaints I have heard from individuals who have purchased this watch and that is that they don’t seem to get the full 5-day power reserve as advertised by Oris.
#Oris calibre 400 movement how to#
Fig 4 – Arrow indicating how to let down the power Servicing these watches should be straight forward for any watchmaker. This watch requires both and is marked with an arrow indicating you must loosen the screw and another pointing to the button to release the spring tension. Most watches require you to either turn a screw or depress a button. Also, the double release for the winding stem (a feature exceedingly rare in watchmaking) is also well marked. The click is clearly labeled with an arrow. For example, with two barrels it can be more difficult than normal to figure out how to release the power stored by the mainsprings before servicing the watch. Anything that is out of the ordinary is clearly marked to aid the watchmaker in his service. The watch comes apart and goes together easily. Often brands don’t think about what will happen when the watch needs to be serviced, but in this case, it is apparent that the needs of the watchmaker were considered. Conceived entirely in-house by the independent Swiss watch company’s skilled engineers, it offers elevated levels of anti-magnetism and a five-day power reserve, and comes with a 10-year warranty and 10-year recommended service intervals.From the watchmaker’s perspective, it even looks like they designed the caliber 400 with after-sales service in mind.
#Oris calibre 400 movement series#
That’s what we mean by the joy of mechanics. Oris Calibre 400 Series sets the new standard in automatic mechanical watchmaking. But the simple pleasure of owning one and seeing it work makes life that much more enjoyable. Because if there’s one thing our watches have to do, it’s bring a smile. Whether we’re looking at a Ferris wheel with its open workings, or a mechanical watch movement through a case back, it warms us to see how things work. In our digital, connected, touch-sensitive world, the joy of mechanics has taken on new meaning. This new movement was conceived entirely in-house and uses a twin barrel concept and more than 30 non-ferrous and anti-magnetic components to meet the demands of our modern life. 41.5mm stainless steel case, automatic in-house Calibre 400 movement with date function, blue dial.Ĭreated by Oris for today's world citizen, the Oris Calibre 400 sets the new standard with an anti-magnetic automatic movement, a five-day power reserve and a 10-year warranty.
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