The entrepreneur and “Shark Tank” star will share his top tips for success.
Ask the Watch Guy: 7 Reasons to Replace Watch Batteries
Customer demand, profit margin and winning over competitors’ customers are just a few of them, columnist Jess Gendron writes.

Accepting watch battery replacements can seem like more of a headache than a boon for business, but there are plenty of reasons why jewelers should take advantage.
Here are seven.
1. Customer demand. Never before has the demand for simple watch services been greater. It’s true that watch boutiques in city centers and high-dollar malls are flourishing; however, they do not focus on pedestrian services and do not service watches they don’t sell.
2. Highest profit margin in your store. Imagine offering factory-type service during which you clean the case and band, replace the gasket(s), and reseal as well as replace the battery and charge an average retail of $50 for this. Even if you have to replace every gasket at the astounding cost of 10 cents and each battery at an average cost of 50 cents, that’s nearly a 100x markup!
3. Easy, available and free training. Here is a free video on changing watch batteries like a professional.
4. It’s the easiest way to steal your competitors’ customers. Let’s say you are a chain or department store; virtually all these establishments have a policy that all repairs must go to a central repair facility far, far away.
Since nothing is done locally, even a battery replacement (or band adjustment) takes weeks.
As a general rule, these establishments are more than happy to refer their customers to you (and, if they’re not, please see my past article on how you can encourage them to do so) just so that they don‘t have to deal with a customer calling every two days wondering when his or her watch will be back with its new battery.
5. Service. It’s the only thing in your store that Amazon (or anyone else on the Internet) can’t sell cheaper.
6. Very minimal investment to begin. As we mentioned, you can download a free video on changing watch batteries. The minor amount of tools and equipment needed, if you don’t already have them in your store, would set you back less than $300.
7. Presumed competence. When it gets to be known around town that you change watch batteries in your store, it will be presumed that you are also the local expert on anything else having to do with a watch. So get ready, because this means that you will have a lot of new business, new customers who are educated in watches and have money to spend
As J.B. Matthews once said: “Unless a person has trained himself for his chance, the chance will only make him ridiculous.”
Your chance is staring you in the face. Take advantage of the profits that others leave on the table. Replace watch batteries, and do them like the professional that you are.
My next article will be on what is needed to set up a professional watch battery changing area. Thanks for reading!
Jess Gendron is a seventh-generation watchmaker and is the owner of Colorado Timeworks, a watch repair service center in Colorado Springs. He can be reached at cotimeworks@gmail.com, and his website is Timeworks.biz.
The Latest

The Ukrainian brand’s new pendant is modeled after a traditional paska, a pastry often baked for Easter in Eastern European cultures.

The “Strong Like Mom” campaign features moms who work at Tiffany & Co. and their children.

Interior designer Athena Calderone looked to decor from the 1920s and 1930s when crafting her first fine jewelry collection.


During a call about its full-year results, CEO Efraim Grinberg discussed how the company is approaching the uncertainty surrounding tariffs.

The free program provides educational content for jewelry salespeople and enthusiasts to learn or refresh their diamond knowledge.

Bench jewelers spend years honing their skills, Jewelers of America’s Certification validates their talents.

The feedback will be used to prepare other jewelers for the challenges ahead, the organization said.

The online sessions are designed to teach jewelers to use AI tools like ChatGPT and Claude to grow their business.

The “United in Love” collection offers tangible mementos of hearts entwined with traditional and non-traditional commitment heirlooms.

Robert Goodman Jewelers will hold a “Black Jewelry Designers and Makers” event on April 27.

The announcements follow a tumultuous start to 2025 for WJA, which saw a wave of resignations following controversial statements about DEI.

Editor-in-Chief Michelle Graff answers questions about how the new taxes levied on countries like India and China will impact the industry.

Kenewendo, Botswana’s minster of minerals and energy, discusses closing the deal with De Beers and the work that was missed along the way.

The historic fancy vivid blue diamond set to headline Christie’s Geneva sale next month could sell for up to $50 million.

LVMH CFO Cécile Cabanis also discussed the effects of tariffs so far.

The “Mad Men” and “The Morning Show” star steals jewelry, art, and handbags from his wealthy neighbors in “Your Friends & Neighbors.”

The organization has reelected Kalpesh Jhaveri as president.

An investigation found that the former managing director of Movado’s Dubai branch overstated and prematurely recorded sales.

The collection pays tribute to the Japanese philosophy of Ma, studying balance, stillness, and the interplay between presence and absence.

Mari Lou’s Fine Jewelry in Orland Park, a suburb of Chicago, is closing its doors.

GIA’s labs in Dubai and Hong Kong are now accepting larger diamonds in light of the “logistical challenges” presented by the new tariffs.

These earrings by Van Cleef & Arpels, featuring the same design as a pair worn by Princess Grace, are up for auction at Woolley & Wallis.

Two experts share how artificial intelligence tools can help retailers run a more efficient business.

Kentaro Nishimura, who has been with the pearl company since 1997, has been promoted to president and CEO of Mikimoto America.

“America Telling Time: 150 Years of Bulova” explores the storied history of the American watchmaker.