Watch Almanac

Independent watchmaker

TNS Diamonds & Watches

Philadelphia shop with an on-site watchmaker handling battery swaps, full service, polishing and vintage repair on Rolex, Omega, Tudor, TAG Heuer, Breitling

TNS Diamonds & Watches, on S 8th St in Center City East, keeps a watchmaker on site who handles the full range of repair work: battery replacements, bracelet sizing, case and bracelet polishing, vintage watch repair, and complete service and overhaul. They service Rolex, Omega, Tudor, TAG Heuer, Breitling, Cartier, and Seiko.

The shop says it is an authorized service center for Rolex, Omega, Tudor, TAG Heuer, Breitling, and Cartier, though that status isn't independently verified here and is worth confirming directly if it matters for your warranty or service paperwork. Beyond those six brands, they also take on Seiko repairs and vintage pieces that need more specialized attention.

For anyone not local to Philadelphia, TNS offers mail-in service, so a watch can be sent in for a battery change, polish, or overhaul without a trip to the shop. As a diamond and watch dealer as well as a repair shop, this is a higher price-tier operation (tier 4), which is generally in line with the luxury brands it works on.

The shop is open Monday through Friday, 10:30am to 5:30pm, and closed on weekends. It's located at 136 S 8th St in Center City East, and can be reached by phone at (215) 922-1501.

Services

  • Battery replacement
  • Full service and overhaul
  • Vintage watch repair
  • Case and bracelet polishing
  • Mail-in repairs
  • Watchmaker on site

Brands and credentials

Says it is authorized for
Rolex, Omega, Tudor, TAG Heuer, Breitling, Cartier
Brands serviced
Rolex, Omega, Tudor, TAG Heuer, Breitling, Cartier, Seiko

From the shop's own website, not checked with the brands. Confirm an authorization with the brand before sending in a watch under warranty.

Questions

Can TNS Diamonds & Watches replace a watch battery?
Yes, battery replacement is one of the services they offer on site.
Is TNS Diamonds & Watches an authorized Rolex service center?
The shop states it is authorized for Rolex, Omega, Tudor, TAG Heuer, Breitling, and Cartier; this is the shop's own claim, so confirm directly with them if that status matters to you.
Do they work on vintage watches?
Yes, vintage watch repair is listed among their services, alongside case and bracelet polishing and bracelet sizing.
Can I send my watch in instead of visiting the shop?
Yes, they offer mail-in service for customers who aren't local to Philadelphia.
What are the shop's hours?
They're open Monday through Friday from 10:30am to 5:30pm and closed Saturday and Sunday.

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