Building gauges and gadgets with Arduinos, Raspberry Pis and Switec stepper motors.

Buyers Guide



I am aware of three companies manufacturing compatible motors. All appear to produce a good-quality product.


Switec was originally the technology arm of the Swiss watch company Swatch. The stepper business was sold off to Singapore-based Juken Technology in 2009. Switec motors are white, and have part numbers starting with “X”.


Hong Kong based VID also manufacture a range of similar motors. Their motors are black, and have a black model number starting with “vid”.


Chinese company MCR Motor manufacture a range of compatible motors. Their motors are white. with part numbers starting with “MR”.

X25 Product Numbers

Each manufacturer produces a number of variations of the motor.

SwitecVIDMCRContactsMounting PegsInternal StopShaft
X25.278rearrearnolong (+2mm)
X25.288VID29-04rearrearyeslong (+2mm)
X25.579frontfrontnolong (+2mm)
X25.589VID29-07frontfrontyeslong (+2mm)
X25.679frontfrontnolong (+2mm)
X25.689frontfrontyeslong (+2mm)

Other Switec Series

X23 Series

The X23 motors have an a hollow metal shaft encasing a transparent light guide to make it possible to have an illuminated pointer.

X26 Series

The X26 motors are dual-shaft analog clock motors. The model numbers are X26.101, X26.103, X26.123, X26.504. See the the “Switec Series Buyers Guide” in the Resources for more details.

X27 Series

The X27 motors are a new line replacing the X25 series. The X27 part numbers mirror the X25 series.

X12 Motor Drivers

The X12 part numbers refer to a series of driver chips developed by Switec. I have not been able to locate a supplier of these chips since shut down.


I have not found any well-known online store supplying these parts. They are cheap and plentiful on ebay. However it can be difficult to determine exactly what you are getting; these motors are generally sold as Switec X25 replacements, without clearly specifying the manufacturer.