With a history spanning more than three decades, the ETA 2824 caliber is possibly one of the best-known and most popular Swiss movements among mechanical watch enthusiasts.
A precise and extremely versatile automatic movement that is found in a wide variety of affordable and super high-end watches as it offers multiple surface planes.
Although all of them are sturdy movements that require little maintenance. It’s also easy to repair and has a good aftermarket.
In this post, we’re going to review all of its history and specifications, and compare the ETA 2824 to the best moves from other brands.
✚ ETA 2824 – Technical file
|Vibration frequency||28,000 vph|
|Energy reserve||38 hours|
|Dimensions||25.6mm x 4.6mm (diameter x depth)|
|precision||+ -12 / + -7 / + -4 sec. Day (depending on the goal)|
|properties||Hours, minutes and seconds on central hands and calendar|
|Stop seconds (hacking)||And|
✚ A little history
The ETA 2824 caliber was made in Switzerland in 1972, although it was a derivative of the Eterna 1429U and 1439U calibers made between 1959 and 1961.
At that time, ETA was called ETA´sa and was already part of the Swatch Group, although they worked closely with Eterna.
To understand this relationship better, we have to go back to the year 1856, when Josef Girand and Urs Schild founded Eterna and created ETA´sa as their division of movement.
At the same time, Urs’ brother Adolf Schild founded ASSA or AS and became one of the most important manufacturers of calibers in the 1920s.
Only a few years later, in 1926, AS merged with Fontainemelon (FHF) and A.Michel to form Ebauches SA, a company that later took over Felsa and founded the Swatch Group, then known as ASUAG (General Swiss Watch Industry) in 1931).
Over the years, ASUAG will continue to bring together numerous companies in the industry between manufacturers of steering wheels, spirals, exhausts and clockworks.
In 1932 Eterna decided to forego the ETA movement department, but was far from breaking up, part of Ebauches SA and thus another company in the Swatch Group.
Most of the companies integrated into Swatch kept their factories and brand, so it is not uncommon for ETA to continue to work with Eterna after the split.
✚ How does it work?
The ETA 2824 is an automatic movement with a bidirectional rotor that works on a ball bearing. A mechanism that also includes a second stop and manual lift.
It is also a modular movement as it is built on the basis of the manually wound caliber ETA 2801 to which an automatic lifting module is added.
The winding works thanks to a system of double wheels (double click wheels) developed by Eterna, which are responsible for enabling the mechanism to charge energy in both directions.
In fact, the ball-bearing rotor is also an Eterna patent from 1948, which was baptized as “Eterna-Matic” in its time and is available in the calibers 1429U and 1439U.
While the calibers 1429U and 1439U only beat at around 18,000 vph for the time, the ETA 2824’s design has been improved so that it can run at 28,800 vph.
The only difference between the Eterna caliber 1429U and the 1439U is that the latter has a small screw to fine-tune the racket.
Regarding the anti-shock system, ETA 2824 uses Etachoc in the most basic finishes and Incabloc in the highest. Both protect the mechanism from falls and knocks, although the latter has more category.
This movement also has an Etachron control system that allows easier and more precise adjustment of the mechanism.
The 2824 can achieve different precision ranges depending on the type of setting. There are up to four equipment variants for this. They are as follows:
- Default: The movement is set in two positions, which gives an accuracy range of -12 ～ +30 seconds. / Day.
- Elaborated: The movement is set in three positions and an accuracy is obtained that oscillates in the range of -7 ～ +20 s. / Day.
- Above: It is mounted with a 5-position adjustment that gives an accuracy in the range of -4 15 +15 seconds. / Day.
- Stopwatch: adapted to those of the COSC, which is in the range of -4 ～ +6 seconds. / Day.
While this does not mean that an ETA movement with a standard finish can achieve greater than + -12 seconds / day accuracy, and in fact, this is most normal.
The precision ranges given by the manufacturers are more aimed at establishing a classification of where the movement should be located, which is almost always more precise in practice.
The relatively humble 2824 can compete with much more expensive precision mechanisms with proper lubrication and adjustment, but is usually also considerably stronger.
➤ Power reserve
The power reserve of the 2824 is approximately 38 to 40 hours when the mechanism is fully charged. This is achieved by turning the wrist or turning the crown.
Thanks to the bidirectional rotor, the automatic module of this movement can be loaded in both directions, which makes it more efficient.
➤ Brands that use it
ETA has been supplying movements to brands other than a major Swiss manufacturer for decades, and the 2824 is one of the most well known and there are many watches out there to assemble it.
Although in recent years the Swatch Group has severely limited the range of ETA movements to brands that are not part of their own conglomerate.
We still talk about a lot of brands though, as Swatch is behind a large number of the major Swiss watch brands on the market. These are some of them:
- Marc & Sons
And here are some of the clocks that use it:
✚ ETA 2824 and ETA 2824-2 What is the difference?
The ETA 2824-2 is nothing more than a later version of the same movement from 1982 and also the last update to date.
✚ ETA 2824 against Sellita SW200
One could say that the Sellita SW200 caliber is the market reaction to the ETA 2824 blocking all brands that are not part of the Swatch group.
In fact, both mechanisms are practically identical in both design and operation, but the SW200 is cheaper and easier to obtain.
The Sellita is also made in Switzerland and, as can be seen from the table, its specifications are the same except for this additional gemstone which does not affect the other identical properties at all.
|model||ETA 2824||Sellita SW200|
|Vibration frequency||28,800 vph||28,800 vph|
|Energy reserve||38 hours||38 hours|
|Dimensions||25.6 x 4.6 mm||25.6 x 4.6 mm|
|precision||+ -12 / + -7 / + -4 sec. Day||+ -12 / + -7 / + -4 sec. Day|
✚ ETA 2824 versus Miyota 9015
The Miyota 9015 is a bit cheaper and also runs at 28,800 vph, but it can’t reach the levels of precision that the ETA caliber calibrates.
In the standard finish the 2824 can be very precise, but a Miyota 9015 will hardly be able to meet the COSC requirements.
Lego is that one is Swiss and the other Japanese, although both movements have amply proven their reliability over the years.
|model||ETA 2824||Miyota 9015|
|Vibration frequency||28,800 vph||28,800 vph|
|Energy reserve||38 hours||42 hours|
|Dimensions||25.6 x 4.6 mm||26 x 3.90 mm|
|precision||+ -12 / + -7 / + -4 sec. Day||-10 ～ +30 sec. / Day|
✚ ETA 2824 against Seiko 6R15
The Seiko 6R15 is a modern and reliable Japanese caliber that is featured in many of the brand’s new watches, but is not in the same league as the 2824.
The main difference is in precision as it cannot match the ETA mechanism or its most economical or standard version.
It’s also noteworthy that the 6R15 hits at a lower rate. This means that the needle will not jump from second to second as quickly and therefore its movement will not be as smooth as on the 2824.
Although it exceeds the ETA movement in the power reserve by more than 10 hours, this is something remarkable in a caliber that is much cheaper.
|model||ETA 2824||Seiko 6R15|
|Vibration frequency||28,800 vph||21,600 vph|
|Energy reserve||38 hours||50 hours|
|Dimensions||25.6 x 4.6 mm||27.40 x 5.25 mm|
|precision||+ -12 / + -7 / + -4 sec. Day||-15 ～ +25 s / day|
✚ Time and date setting
- Hour: Pull out the crown twice (2 clicks) and rotate it until the hands are in the desired position.
- Date: Pull the crown out once (1 click) and turn it to change the number until the desired date is reached.
- Remonte manual: If the crown is attached to the case or not removed, rotate it 30 times for a full charge. Stop if you feel too much resistance so as not to force the mechanism.
Watches.Wiki participates in the Amazon EU Affiliate Program, an affiliate advertising program that allows websites to earn advertising commissions through advertising and links to Amazon.com
As an Amazon partner, we generate income from related purchases that meet applicable requirements. More info.
Last update of the links and pictures on 2021-02-04. Prices and availability may differ from the prices published on Amazon.