1. Installation

It is no longer necessary to install the Windows fonts used for the interface display.
The application now loads them automatically and dynamically.

2. Interface

2.1 License selection with a license server

From this version onwards, only existing licenses are displayed.

2.2 Addition of copy / cut / paste features

New copy / cut / paste features are available via the contextual menu in the “Load All” (34) and “Save All” (35) windows.

3.Drawing

3.1 Lz moment of inertia for 2D shapes

The Iz moment of inertia for 2D shapes has been added to the inertia measurement functions.

4.Watchmaking

4.1 New feature in the graph editing window (1100): preview of the part linked to the measurement

In the graph editing window (1100), within the “Curve” and “X Axis” tabs, it is now possible to preview the part linked to the measurement by clicking the SELECT mouse button.

4.2 New feature in the graph editing window (1100): addition of new filters

A “Filter” field has been added, allowing filters to be applied to curves.
Four filters are now available, depending on usage:

• Fourier high-pass filter
• Fourier low-pass filter
• Hampel filter
• Moving average

4.3 New formatting for data export to Excel .xlsx format

The formatting of result exports to Excel .xlsx format has been improved to provide better readability:

• Results are exported in two columns onlyResults are exported in two columns only
• Increased precision with 10 digits after the decimal point
• Updated colors for point outlines and fills in the graph

4.4 New “Disc” component (2545)

A new component is now available in TellWatch : the “Disc” component (2545).
Several disc types are available, including:

• Date disc
• Weekday disc
• Day/Night disc
• Month disc
• Moon phase disc

4.5 Component creation: interactive parameter selection via dimensions in the control window

Since version v25, dimensions linked to parameters can be displayed when creating components in 2D representation.
This functionality has been extended to a larger number of components.

4.6 Component creation: NIHS tables update

The NIHS component tables have been updated according to the October 2025 standards.

5.Kinematics

5.1 Double contact

This version introduces the consideration of a second contact in kinematic calculations, improving modeling accuracy.

5.2 Graph (1100)

Addition of a new measurement type: Linear position, corresponding to the position of the part relative to its direction of movement.

5.3 Format

The TellWatch file format (extensions tld, tldz, tldx) has been modified. As a result, new TellWatch files generated with kinematic animations including double contact are no longer compatible with versions prior to v26.