Eta movement with longer energy storage

How accurate is Eta chronometer?

Using its new exclusive PreciDrive technology, ETA is proud to offer annual precision of +/- 10 seconds, or in other words, 0.027 seconds a day. This level of precision easily meets the criteria established by the Swiss official chronometer testing institute (COSC) for it to be awarded the label «chronometer».

What is Eta precidrive?

ETA presented this Spring at Baselworld a collection that focuses on what makes Swiss watchmaking famous and what is expected by those who purchase quartz watches: precision. Using its new exclusive PreciDrive technology, ETA is proud to offer annual precision of +/- 10 seconds, or in other words, 0.027 seconds a day.

What is the difference between Eta 2892-A2 and Eta a31-l11?

The ETA caliber A31.L11 is based on the ETA 2892-A2 automatic watch movement. When comparing the caliber A31.L11 to the 2893-A2, one of the advantages and main differences is the improved power reserve. The 2892-A2 has a power reserve of 42 hours, while the A31.L11 can run up to about 72 hours on a full wind.

What makes a ETA 2750 a good watch?

The thinness of its construction made possible for added double calendar and auto winding mechanism. The 2750 can be said to be the grandfather of the ETA 28xx series of watches. Many components are similar and possibly exchangeable.

How accurate is Eta caliber 2892-A2?

This is why the community ought to start regarding ETA as a Swatch Group exclusive movement house. Accuracy of the ETA caliber 2892-A2 can range from as much as +/-20 seconds per day to just +/-5 seconds/day. The accuracy that your watch experiences depends on the grade that the watch manufacturer chose to power their watches.

Is the ETA 2750 the grandfather of the 28xx series?

The 2750 can be said to be the grandfather of the ETA 28xx series of watches. Many components are similar and possibly exchangeable. I've had about half a dozen watches powered by this engine and this is the first time I've taken a closer look, which now makes me regret for selling a couple. Here's a couple of mine: