Accuracy Movement Design With 31mm base diameter, this watch movement holder ensures and stability for watch movements, solving traditional incompatibility issues while enhancing overall watch . Lightweight Construction Weighing only 23g, this alloy steel holder significantly reduces watch burden, providing comfortable wearing for both daily use and sports activities without compromising durability. High Strength materials Crafted from premium alloy steel with impacts resistant and wear properties, this holder 3x longer lifespans than alternatives, ensuring efficient long term for your timepieces. Multi Scenario Application Suitable with various watch types including mechanical, quartzs and craft watches, solving movement connection challenges for different models to meet watch enthusiasts' customization needs. Package includes: 1Pc Watch Movement Holder