Introducing the BronzePen: A New Chapter in Watch Care

If you’ve ever owned a bronze watch, you’ll know the beauty—and the challenge—that comes with it. Unlike stainless steel or gold, bronze is alive. It develops a rich patina that tells the story of your adventures. For some, that evolving surface is the soul of the watch, even the reason to buy a bronze timepiece. For others, the difficulty of maintaining the beautiful golden finish of a new bronze watch makes it prohibitive for them to buy or own watches in this special alloy.

At AIS Collective, we believe watch care should always give you the choice. That’s why, after more than two years of development with Swiss industry experts, we’re beyond proud to introduce the BronzePen: the world’s first watch cleaner made specifically for bronze watches.

Why We Created the BronzePen

When we launched AIS Collective, we set out to fill a gap: safe, professional-grade watch cleaning tools that collectors could trust. Our ChronoPen was the first step—and it’s now part of watch cleaning kits around the world, used by brands, retailers, and collectors alike.

But when it came to bronze, we noticed something missing. Collectors loved their bronze watches, but no one had a safe way to clean them at home. Household cleaners were too aggressive. Traditional watch cleaners weren’t made for bronze. That’s when we decided: bronze deserved its own dedicated solution.

The BronzePen: Designed Exclusively for Bronze Watches

Caring for a bronze watch is different from caring for steel or gold. Bronze reacts to the world around it—it darkens, it changes, it develops layers of patina that make every watch unique. But sometimes, the patina builds up more than you’d like, hiding the details you fell in love with in the first place.

That’s where the BronzePen comes in. After years of experimenting, we found a way to create a gentle, bronze-specific watch cleaner that gives you control: whether you want just a light refresh or a complete reset. The soft brush reaches into every groove, and the formula is balanced to lift patina without stripping away the character that makes bronze special.

Patina Is a Story—Now You Can Choose How to Tell It

When we first started working on the BronzePen, our goal was simple: to respect the natural beauty of bronze while giving collectors full control over its care. Patina is deeply personal—some love it untouched, others want their watch shining like the day they bought it. 

With the BronzePen, we wanted to give bronze watch owners a dedicated solution that respects the material’s nature while offering full control over the cleaning process. Patina tells the story of a bronze watch, and the BronzePen allows owners to decide how much of that story they want to keep.

After two years of testing with Swiss experts, We are proud to say we’ve created a tool that makes both possible.

A Personal Thank You

Developing the BronzePen has been a true passion project, and it wouldn’t have been possible without this community of collectors who continue to inspire us every day. You’ve shared your stories, your struggles, and your love for watches—and that’s what pushes us to innovate.

Here’s to bronze watches, to patina, and to giving you the freedom to care for your timepiece exactly the way you want.

With gratitude from Zürich,

Said