The Essential Watch Tool Kit: What You Need and Why
By James Alderton . 8 min read . Updated June 2026
Most watch enthusiasts own a dozen straps and zero tools to change them properly. The result is scratched lugs, bent spring bars, and strap swap anxiety that kills the enjoyment of having options. The right tool kit costs under $50 and eliminates all of that. This guide covers the four tools worth owning: a quality spring bar tool like the Bergeon 6767-F Spring Bar Tool , a case back opener like the Horotec Adjustable Case Back Opener , a loupe like the Bausch and Lomb 5x Watchmaker Loupe , and an ultrasonic cleaner like the iSonic Ultrasonic Watch Strap Cleaner for serious strap maintenance. Or get everything in one purchase with the Esslinger Watchmaker Starter Tool Kit .
The short answer
The four tools worth owning are: a Bergeon 6767-F spring bar tool, an adjustable case back opener, a 5x glass loupe, and an ultrasonic cleaner for metal bracelets and rubber straps. The Esslinger starter kit covers the first three in a single purchase. Beginners should start with the Barton Strap Tool for a more forgiving handle geometry.
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Tool 1: The spring bar tool
The Bergeon 6767-F Spring Bar Tool is the tool every watch collection needs before a second strap. The professional-grade Swiss tip seats correctly in the spring bar notch and gives controlled pressure that does not slip and scratch the lug. Buy it once and it lasts indefinitely; replacement tips are available when the forked end eventually wears.
For beginners who find the slim Bergeon handle intimidating, the Barton Watch Strap Changing Tool has a cushioned ergonomic handle that gives more grip control during the learning curve. It is less precise on very tight lug gaps but is the correct starting point if you have never changed a strap before.
Bergeon 6767-F Spring Bar Tool
The Swiss-made professional spring bar tool used by watchmakers and serious collectors. A forked stainless tip with a replaceable plastic grip handle. The benchmark tool for strap changes on fine watches.
Barton Watch Strap Changing Tool
A purpose-built strap-changing tool from Barton with a cushioned ergonomic handle and a hooked tip designed specifically for watch strap swaps rather than movement work. Beginner-friendly and less intimidating than a Bergeon.
Tool 2: The case back opener
The Horotec Adjustable Case Back Opener is the correct tool for screw-back watch cases, which is the most common case back type on sport and tool watches. The adjustable jaw fits case diameters from 25mm to 50mm and the dual-grip handle gives enough torque to open backs that have been tightened by a previous watchmaker.
Snap-back cases (common on quartz watches and some dress watches) need a case knife blade tool instead of a wrench. Identify your case back type before buying a specific tool. The Esslinger Watchmaker Starter Tool Kit covers both snap-back and basic screw-back cases in a single kit.
Horotec Adjustable Case Back Opener
A professional adjustable case back wrench from Horotec that fits screw-back cases from 25mm to 50mm in diameter. Dual-grip handle for controlled torque without slipping.
Esslinger Watchmaker Starter Tool Kit
A beginner kit from Esslinger that bundles a spring bar tool, adjustable case back opener wrench, 5x loupe, case cushion, and watchmaker screwdrivers in a compact roll pouch. A genuine starter toolkit for DIY watch maintenance.
Tool 3: The loupe
The Bausch and Lomb 5x Watchmaker Loupe at 5x magnification is the right entry-point loupe for a watch collector. At 5x you can read the dial printing clearly, inspect case finishing for flaws, check spring bar condition, and examine bracelet link pins. This is immediately useful when evaluating a watch purchase or inspecting a strap for wear.
A 10x loupe is required for movement inspection, which is watchmaker territory. For collector use, 5x is the practical sweet spot between magnification and field of view.
Bausch and Lomb 5x Watchmaker Loupe
A 5x magnification loupe with an optically coated glass lens from Bausch and Lomb. The standard entry-point magnification for inspecting dial printing, case finishing, and spring bar condition.
Tool 4: The ultrasonic cleaner
The iSonic Ultrasonic Watch Strap Cleaner handles the cleaning task that no brush or cloth does well: removing accumulated skin oil, salt, and grime from between bracelet links, inside strap holes, and in the crevices of buckle hardware. The 42kHz ultrasonic frequency creates microscopic bubbles that collapse against surfaces and dislodge contaminants without abrasive contact.
It is appropriate for metal bracelets, rubber and silicone straps, and metal hardware. Do not use it with leather straps or with unsealed watch cases (movement exposure to water or ultrasonic vibration causes damage).
iSonic Ultrasonic Watch Strap Cleaner
A compact ultrasonic cleaner sized for watch straps, bracelets, and small watch components. 42kHz cleaning frequency, digital timer, and a stainless steel tank that holds 600ml. Effectively removes skin oils, salt deposits, and soap residue from metal and rubber straps.
The all-in-one starter kit
If you want a complete starter toolkit in a single purchase, the Esslinger Watchmaker Starter Tool Kit bundles a spring bar tool, adjustable case back opener, 5x loupe, case cushion, and watchmaker screwdrivers in a roll pouch. The individual tools are not professional-grade Bergeon quality, but they are sufficient for casual maintenance and strap work. Esslinger is a known watchmaker supply brand, which gives this kit more credibility than similar-looking generic bundles.
Esslinger Watchmaker Starter Tool Kit
A beginner kit from Esslinger that bundles a spring bar tool, adjustable case back opener wrench, 5x loupe, case cushion, and watchmaker screwdrivers in a compact roll pouch. A genuine starter toolkit for DIY watch maintenance.
Featured in this guide
Bergeon 6767-F Spring Bar Tool
The Swiss-made professional spring bar tool used by watchmakers and serious collectors. A forked stainless tip with a replaceable plastic grip handle. The benchmark tool for strap changes on fine watches.
Barton Watch Strap Changing Tool
A purpose-built strap-changing tool from Barton with a cushioned ergonomic handle and a hooked tip designed specifically for watch strap swaps rather than movement work. Beginner-friendly and less intimidating than a Bergeon.
Horotec Adjustable Case Back Opener
A professional adjustable case back wrench from Horotec that fits screw-back cases from 25mm to 50mm in diameter. Dual-grip handle for controlled torque without slipping.
Bausch and Lomb 5x Watchmaker Loupe
A 5x magnification loupe with an optically coated glass lens from Bausch and Lomb. The standard entry-point magnification for inspecting dial printing, case finishing, and spring bar condition.
iSonic Ultrasonic Watch Strap Cleaner
A compact ultrasonic cleaner sized for watch straps, bracelets, and small watch components. 42kHz cleaning frequency, digital timer, and a stainless steel tank that holds 600ml. Effectively removes skin oils, salt deposits, and soap residue from metal and rubber straps.
Esslinger Watchmaker Starter Tool Kit
A beginner kit from Esslinger that bundles a spring bar tool, adjustable case back opener wrench, 5x loupe, case cushion, and watchmaker screwdrivers in a compact roll pouch. A genuine starter toolkit for DIY watch maintenance.
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