We are open Tuesday through Saturday,
12:00 p.m. to 5:00 p.m. (Appointments Recommended)

We are open Tuesday through Saturday, 12:00 p.m. to 5:00 p.m. (Appointments Recommended)

Watch Services

50 Years of Experience You Can Trust

Watch Services Watch Services Watch Services

Over 50 years of watchmaking experience. The Watch Division of Market Street Diamonds is the most qualified, convenient, affordable and reliable source in the Mid-Atlantic Region for repairs, testing and warranty service for your fine Swiss timepiece..

We are more than pro watchmakers. We developed our own line of luxury military watches - lonzanowatch that we are very proud of. The watch line has been available for the enthusiasts since 2012.

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Member of American
Watchmakers
& Clockmakers Institute

Lonzano Watch collection available in store

Time Products Sold New, Previously Enjoyed and Vintage Collector’s Pieces

Master watchmaker with a specialized focus on watch servicing and repairs

Diagnostic Examination

Assessment, Cleaning & Servicing

Watch Case Disassembly & Polishing

Timekeeping & Calibration

Pressure Testing & Waterproofing

Quality Control

Expert Appraisals

“50 years of watchmaking &
clockmaking
experience that you can trust!”

“50 years of watchmaking & clockmaking
experience that you can trust!”

Read what our clients say about us

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Inspired by vintage combat aviation designs, and built with high-end swiss movement, the Lonzano Watch is the choice of exceptional men who cherish the spirit of adventure

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Made in DC!

#MadeInDC

Made in USA

#US Made

Red Carpet Customer Service

Red Carpet Customer Care

Eco-Conscious Enterprice

Eco-Conscious Enterprise

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