ETA 2893-1-2-3 Differences Explained

Manufacturer	ETA
Caliber Number	2893-1, 2893-2, 2893-3
Base Caliber	2892-A2
Type	Automatic
Lignes	11.5”’
Diameter	25.6mm
Height	4.1mm thick
Jewels	21
Vibrations Per Hour	28,800 bph
Lift Angle	51 degrees
Hacking?	Yes
Hand-Windable?	Yes
Functions	See below
Country of Manufacture	Switzerland
Known Models	(Add your watch to the comments below…)

The ETA caliber 2893-X family is part of the Mecaline Specialities line of ETA movements. The 2893 is an automatic movement that is Swiss made with 21 jewels. It is a modular movement that uses the 2892-A2 as a base, but with the addition of a GMT complication. There are three variations of this movement described below.

2893-X Variations:

The 2893 family of movements is available in 3 variations: 2893-1, 2893-2, and 2893-3. The most common of the three is the 2893-2.

All three versions are the same diameter, same jewel count, and the same beat rate. The main differences between these calibers are as follows:

-1 has a world time GMT disc and a quickset date
-2 has a centrally located GMT hand and quickset date at 3:00
-3 has a world time GMT disc and no date

The world time disc on the -1 and -3 features indicators for the different time zones around the globe. Interestingly, despite ETA showing the world time disc as being larger on the -3 without a date, the parts lists calls for the same part number (2520/1) in either the -1 or -3 movements. ETA refers to this GMT disc or 24 hour disc feature as a universal hour mechanism.

Above is part #2520/1 for the universal hour mechanism on the 2893-1 and 2893-3. ETA shows the wheel with the time zone markers, but many brands use a wheel with 24 hour markers instead.

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