Breitling 105

The Breitling 105 stands as an automatic movement, developed by Breitling, and is also recognized by its alternative designation, the Seiko 5025A. This caliber is designed for self-winding operation, meaning it harnesses the natural motion of the wearer's wrist to power its mechanism, eliminating the need for manual winding under regular use. Within its construction, the Breitling 105 incorporates 7 jewels. These synthetic rubies are strategically placed at points of high friction, such as pivots, to minimize wear and enhance the longevity and stability of the movement's components. Operating at a frequency of 21,600 vibrations per hour (vph), or 3 Hz, the movement provides a steady beat. This frequency results in a second hand that advances in six steps per second, offering a relatively smooth sweep while balancing accuracy with the demands on the power reserve and wear on components. Measuring 25.94 mm in diameter, the Breitling 105 is a compact caliber suitable for integration into a variety of watch case sizes. This dimension allows for versatility in watch design, accommodating different aesthetic and functional requirements. For the wearer, the Breitling 105 offers a practical and reliable experience. Its automatic winding capability ensures convenience in daily wear, while the thoughtful integration of jewels and a balanced operating frequency contribute to its consistent performance and durability over time.

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