100% Certified Authentic

Duncan Watch Co.

Explore our curated selection of genuine timepieces, combining authenticity with exceptional value.
Shop Now
Sell Now

Shop By Category

Rolex
Patek Philippe
Audemars Piguet
Richard Mille
Other Watches

Sell Us Your Watch

Sell your luxury watch with confidence. Get a competitive offer, secure shipping, and fast payment from trusted experts.

Our Story

Duncan Watch Co. was born from a legacy of excellence built by Ken Duncan Sr. and his brothers – pioneers in the rare coin and jewelry world. Now led by the next generation, the company specializes in rare and luxury timepieces, offering a curated selection from a secure Houston showroom. Grounded in honesty, integrity, value, and trust, Duncan Watch Co. is where collectors and enthusiasts find more than watches – they find a legacy.

1985: The Beginning

U.S. Coins began in 1985 as Gulf Coast Coins & Stamps in Houston, built on a mission of honesty, expertise, and passion for rare coins. From a small shop to a trusted name in numismatics, the commitment to helping collectors find real value has never wavered.

1995-2005: Expanding

As the reputation grew, so did the services. Between 1995 and 2005, the business expanded into fine jewelry, precious metals, and luxury watches - becoming U.S. Coins and Jewelry. Though the offerings evolved, the core values remained: authenticity, expertise, and service.

2025: A New Era

Forty years since its inception, U.S. Coins and Jewelry is entering a bold new chapter. In 2025, a two-story showroom will open, along with Duncan Watch Co.—a luxury watch brand built on the same trust and expertise that have defined the business since 1985.

New Arrivals

100% Satisfaction

Customer Reviews

Write a Review
All watches are guaranteed to be 100% genuine and certified authentic.

Authenticity Guarantee: Every watch listed on our site has been examined, performance-tested, and authenticated by our in-house technicians to receive the Duncan Watch Co. Certified Pre-Owned status. Once listed, watches are ready to ship in 1-7 business days and come backed by our 2-year warranty and hassle-free return policy. 

At Duncan  Watch Co., we provide a GUARANTEE OF AUTHENTICITY, A 24 MONTH WARRANTY, and when available, the original paperwork and boxes by the manufacturers themselves.
Saved Watches
Serial Lookup
News
About Us
Showroom
Appointments
Returns
(713) 464-0435
Join our list

Sign up to our email list to stay up to date on our latest deals, news, and events.

By signing up, you agree to receive email marketing from us.
TWO FULL YEAR WARRANTY

We believe that buying a pre-owned watch online should be simple, honest, and straightforward. To that end, we guarantee that every watch on our site is 100% authentic, comprised entirely of authentic parts unless otherwise listed. Our mission is to be the leading trusted online source for selling and buying authentic pre-owned watches. We stand behind this authenticity guarantee with a full money-back refund on any watch not found to be completely genuine.

Duncan Watch Co. warrants this watch against manufacturing defects for the period of two (2) years from the date of purchase, under normal use. This warranty does not cover normal wear and tear, accidents, loss, misuse, abuse, or neglect. This warranty is void if there is any intervention by a third party, or if the watch is modified by the addition or substitution of parts or accessories not supplied by the original manufacturer.

Skip to content