Description: This is a handy tool to remove the back case of watches. Its jaw distance is adjustable, suitable for most of watches. Portable and easy to use, a practical tool to your watch repairing. Features: Rotate the thumb screw to adjust diameter, adjustable jaw distance is from about 8mm to 52mm. Can be used to open the back case of most of watches. Suitable for watches maintenance or battery replacement. A practical hand tool for watchmaker. Compact and portable, easy to use. Specifications: Condition: 100% Brand New Material: Steel Color: Blue (as shown in the picture) Type: Round Tip, Flat Head (Optional) Adjustable Jaw Distance: from 8mm to 52mm Size: approx. 70 x 38 x 10.8mm / 2.76 x 1.50 x 0.43in Weight: approx. 41~46g Package Included: 1 x Adjustable Watch Opener Features Adjustable Diameter: Rotate the thumb screw to easily adjust the diameter, with an adjustable jaw distance ranging from approximately 8mm to 52mm. Versatile Back Case Opener: Designed to open the back case of most watches, making it compatible with a wide range of watch models. Convenient Watch Maintenance: Ideal for watch maintenance tasks such as battery replacement, ensuring hassle-free upkeep of your timepieces. Essential Watchmaker Tool: A practical and essential hand tool for professional watchmakers, facilitating efficient repairs and adjustments. Compact and Portable: Compact design allows for easy handling and portability, making it convenient to use in various settings.