The ETA 2836-2 movement measures 25.60 mm in diameter.
The ETA 2836-2 is a widely recognized and utilized automatic mechanical watch movement, highly regarded for its reliability and robust performance within the watchmaking industry. Its specific dimensions are crucial for watch designers and manufacturers to ensure proper fit within a watch case.
Key Specifications of the ETA 2836-2 Movement
Beyond its diameter, several other specifications define the ETA 2836-2, contributing to its functionality and appeal. These details provide a comprehensive overview of the movement's capabilities.
| Specification | Value | Unit | Description |
|---|---|---|---|
| Diameter | 25.60 | mm | The overall width of the movement, which is essential for determining the compatibility with various watch case sizes. This dimension is equivalent to 11½ lignes in traditional watchmaking measurements. |
| Jewels | 25 | The number of synthetic ruby bearings used in the movement to reduce friction at pivot points, enhancing durability and accuracy. | |
| Power Reserve | 38 | hours | The approximate duration the movement will continue to run when fully wound and not being worn, without additional winding. |
| Frequency | 28,800 | A/h | The oscillation rate of the balance wheel per hour (Alternances per Hour or Vibrations per Hour). This high frequency allows for a smoother sweep of the second hand and contributes to the movement's accuracy. |
Understanding the ETA 2836-2
The ETA 2836-2 is part of ETA SA's popular 28XX family of movements, known for their versatility and widespread adoption across numerous watch brands. It is an evolution of the basic ETA 2824-2, distinguished primarily by its day-date complication, offering both the day of the week and the date display.
Key features of this movement include:
- Automatic Winding: It self-winds through the motion of the wearer's wrist, eliminating the need for manual winding under regular use.
- Manual Winding Capability: Users can also wind the watch manually via the crown.
- Hacking Seconds: When the crown is pulled out to set the time, the second hand stops, allowing for precise synchronization.
- Quick-Set Day-Date: The day and date can be quickly adjusted via the crown, making it convenient for setting the watch after it has stopped.
Its standardized size and reliable performance make the ETA 2836-2 a common choice for a wide array of watches, from everyday wear to more robust sports models, underpinning its popularity among watch manufacturers. To learn more about watch movements and their specifications, you can explore resources on ETA movements.
