Optimize the performance of your timepieces with the NO.1900 Professional Timekeeper, a must-have tool for watch enthusiasts and professionals alike. Designed with precision in mind, this watch calibrator features a compact case size of 185mm x 95mm x 130mm and a visible testing area of 95mm x 54mm, making it ideal for any workspace. The NO.1900 allows for a comprehensive assessment of your watches, measuring critical parameters such as daily difference, pendulum amplitude, polarisation, beat, rise angle, and period. With a measurement range of +999s/d and an accuracy of 0.1s/d, you can ensure your timepieces are performing at their best. The pendulum amplitude measurement ranges from 100° to 360°, and the polarisation is adjustable from 0 to 9.9ms, giving you detailed insights into your watch's functionality. Built for durability and ease of use, the NO.1900 includes a sturdy microphone made from a zinc alloy base and an aluminum sandblasted oxidized rotating axis, weighing 568g for stability during testing. The power adapter, with a compact size of 49.5mm x 34.6mm x 25mm and a cable length of 1.5m, ensures a reliable power supply for your calibration tasks. Whether you are a collector, a watchmaker, or just someone who appreciates the intricacies of horology, the NO.1900 Professional Timekeeper delivers exceptional value. With its user-friendly features and comprehensive testing capabilities, it's your ideal companion for maintaining the precision and longevity of your cherished timepieces. Elevate your watch care routine and experience the difference today!