ETA Caliber 901.001

Manufacturer	ETA
Caliber Number	901.001, 901001
Lignes	5.5”’ x 6.5”’
Diameter	13mm x 15.15mm
Height	2.2mm (2.35mm w/ battery)
Jewels	3
Frequency	32,768 Hz
Battery Cell #	321
Battery Life	11 years / 132 months
Stem Part #	401-1369
Hand Count	2
Hand Sizes	1.20mm (hrs) / .70mm (mins)
Functions	Central hours; central minutes
Country of Manufacture	Switzerland, Swiss made (V8)
Known Models	Ladies Tag Heuer, Tissot Pendants, Tissot Heritage Banana Centenary, Söner Watches Nostalgia Monaco (Add your watches in the comments below…)

The ETA caliber 901.001 is a small 2-hander quartz movement. Based on technical documentation, this caliber has been available since at least 2005.

Crown/Stem Removal:

To extract the crown and stem from the 901.001, look for the arrow pointing to the detent button. Gently press the button with your tool while pulling out the crown/stem.

Replacement Prices:

At the time of this post, replacement prices of $16.95 USD and $23.50 USD were found.

Examples of watches with this calibre:

Below is an example of the 901.001 found in a Tissot Heritage Banana watch:

The example below was found in a ladies TAG Heuer watch:

Quick FAQs:

Does the 901.001 have plastic parts?
Yes.

Is it repairable?
Yes.

Additional Resources:

• ETA official page on the 901.001