Optimize the performance of your timepieces with the NO.1900 Professional Timekeeper, designed for watch enthusiasts and professionals alike. This advanced watch calibrator allows you to measure and adjust various aspects of your timepieces, ensuring they run accurately and efficiently. With a compact case size of 185mm x 95mm x 130mm, the NO.1900 is both portable and user-friendly, making it perfect for use at home or in a workshop. Its visible size of 95mm x 54mm provides a clear display for easy reading of test results. The device measures daily differences, pendulum, polarization, beat, rise angle, and period day differences, with an impressive accuracy of ±999s/d and 0.1s/d. The pendulum amplitude measurement ranges from 100° to 360°, allowing for precise calibration, while the polarization measurement spans from 0 to 9.9ms. With six orientation options and a line length of 196 points, you can achieve detailed results tailored to your specific needs. The NO.1900 is powered by a versatile adapter compatible with 100V to 240V, making it an ideal choice for users worldwide. Weighing only 330g, this device is easy to handle, and the included microphone (115mm x 90mm x 100mm) enhances functionality with its durable zinc alloy base and aluminum sandblasted oxidized rotating axis. The package includes everything you need to get started: the main unit, microphone, power adapter, and a comprehensive instruction manual. Elevate your watch calibration experience with the NO.1900 Professional Timekeeper and ensure your timepieces always perform at their best.