Time Source Jewelers (TSJ), a family-run business established in 1978 as Mondelli Jewelers in Manhattan, NY, has evolved into a trusted destination for luxury timepieces. Led by Mario Mondelli and his son Michael, TSJ offers a vast inventory of certified pre-owned and new timepieces, including authorized retailers of Ball Watch, Hamilton, G-Shock, Victorinox, and RubberB in NY. With a commitment to 100% customer satisfaction, TSJ also provides fine jewelry, estate collections, and GIA certified engagement rings. Based in Huntington Village, New York, TSJ serves a loyal clientele locally and internationally, boasting honesty, reliability, and unmatched commitment over its 40-year history. Customers praise the store's knowledgeable and patient staff, who provide excellent guidance and service. TSJ is known for its impressive selection of new and pre-owned timepieces, as well as its old-school charm, where customers are remembered and valued. Whether it's a watch service, a pre-owned luxury timepiece, or a special jewelry purchase, Time Source Jewelers is a Long Island treasure worth the visit.
Came here to have my watch serviced and they were extremely accommodating.
June 2026
Purchased a new Rolex GMT Master II Batman. Michael was great to deal with. We communicated by text and worked out a deal we were both comfortable with. Watch was available to pickup within 2 days. Thanks again!!
June 2026
Service is amazing, employees are great and make you feel welcomed.
