Snap on case backs have a small lip on the back which is where you place the lever. Pro-quality precision watch case back opening tool. One side provides the lever, the other side is a nylon part to protect the case during opening.
eBay
Watch Demagnetizer Mechanical Quartz Watch Repair Tool Electrical Professional Demagnetize Tool for Watchmaker EU US Plug Reloxs
Aliexpress UK
Your essential tool for effortless precision repairs in the world of horology. Stainless Steel Watch Back Opener & Remover. Constructed from high-quality materials, this tool ensures durability while providing the user with a seamless repair experience.
eBay
Watch Repair Tool Set Watch Link Band Slit Strap Bracelet Chain Pin Remover Adjuster Tool Kit for Professional Watchmak
Aliexpress UK
Perfectly Match for ROLEX, and Other Watches. Surface Plating, Long Lifespan. 1 x Wrench. Good Helper When Opening the Back Case of Your Watch. Easy to Open the Watch Back Case without Scratching.
eBay
2/10 Pack Stainless Steel 4mm Watch Hand Remover Tools Levers With Flat Blade Watch Needle Lifting Tool for Watchmaker
Aliexpress UK
What is included:1 * Wide gourd knife: 84 x 40mm / 3.31" x 1.57"1 * Narrow gourd knife: 110 x 12mm / 4.33" x 0.47"1 * Knife: 115 x 17mm / 4.53" x 0.
eBay
Black Professional Precision Removal Replace Tool Stainless Steel Watch Tools for Watch Series Delugs/Rolex/Omega/Cartier
Aliexpress UK
Perfectly Match for ROLEX, and Other Watches. Surface Plating, Long Lifespan. 1 x Wrench. Good Helper When Opening the Back Case of Your Watch. Easy to Open the Watch Back Case without Scratching.
eBay
Watch Oil Professional 702 701 902 Watch Clock Oil Lubricant Waterproof Synthetic Oil Maintenance Watchmaker Tool Repair Tools
Aliexpress UK
Click here to see description.
eBay
1Pc Size 2cm M0.9 HSS Mini Tap Watch Crown Repair Tool Micro Tap Watch M0.9 Internal Thread Processing Repair Tool
Aliexpress UK
1 x Watch Press & 12pcs Nylon Dies. You can use it to fix small objects that easily remove and insert screws on your glasses, watch, laptop, smartphone, and more! Really easy to pop the back off and the press puts in back on in a snap!
eBay
20 Pack Stainless Steel 0.8mm Wrist Watch Band Pin Spring Bar Link Remover Repair Pry Tool Kit For Watchband Adjusting Tools
Aliexpress UK
The tools are suitable for adjusting and replacing watch bands, opening watch covers, and replacing watch batteries. The watch screwdriver is five in one, with five types of bits suitable for many situations.
eBay
New Fashion Watch Strap Adjustment Repair Tools Metal Steel Strip Remover Watches Link Removal Tool Kit DIY Handmade Accessories
Aliexpress UK