Sinn 503.EZM-1, offered in Used (Good) condition. Main characteristics: Titanium case, Black dial, Automatic movement, Leather bracelet. The full list of specifications is shown above.
The reference number 503.EZM-1 is what collectors use to tell variants of the same model apart, so it is worth checking it against the specifications and photos before you buy. Included in the set: Original papers, no original box. The original box and papers help document a watch's provenance and are key factors in a pre-owned piece's value, which is why we always state exactly what comes with each watch.
Every watch sold by WATCHOYSTER is inspected and authenticated by our certified watchmaker and verified against The Watch Register before it reaches you. Each piece comes with our warranty and a 14-day return policy and ships fully insured from Geneva. Interested in the Sinn 503.EZM-1? Message us on WhatsApp for additional photos, delivery details or any other questions before you decide.
For maximum security and transparency, a Watch Certificate™ can be provided upon request. This independent document confirms the authenticity of the timepiece and protects you from counterfeit or altered watches.
We cooperate with the global organization The Watch Register®. Upon request, every watch - whether new or pre-owned — can be supplied with an official certificate from this international authority.
All orders are shipped with full insurance, ensuring that both domestic and international shipments are safe and worry-free.
You may return the watch within 14 days if it differs from the description or photos, or if there is a defect not mentioned.
All our timepieces are thoroughly inspected by our certified watchmaker to ensure authenticity and perfect working condition. Every watch we offer is guaranteed to be 100% original.
When preferred, collect your watch from our private showroom in Geneva. A secure and discreet handover, designed for your comfort and peace of mind.
Contact us Inform us about the return by writing via WhatsApp — it’s the fastest and easiest way.
Secure return We will provide you with an insured shipping label so you can safely return your watch.
Money back As soon as we receive the watch, you will get a bank transfer refund without delay.
Key details about authentication, financing, viewing, delivery, and condition.
Yes. This Sinn 503.EZM-1 has been physically inspected in-house by our certified watchmaker, covering movement accuracy, case integrity of the 41 mm Titanium case, Black dial condition, and overall authenticity. Every serial number is verified against The Watch Register before listing. This piece carries our 12-month warranty and is covered by our 14-day return policy if it does not correspond to its description.
0% financing is available only for selected watches priced up to CHF 10,000. Eligible models are clearly marked with a financing badge on the product page.
If a watch does not display the financing badge, or its price exceeds CHF 10,000, interest-free financing is not available for that model.
For eligible watches, financing is available to clients residing in Switzerland, with terms from 3 to 24 months. Approval is typically completed within a few minutes during checkout by HeyLight partner bank.
As we are based in the secure Geneva Free Zone, we generally do not offer pre-purchase viewings and operate primarily as an online retailer due to security and insurance requirements.
A limited number of watches are available for in-person inspection by appointment at our office. Availability depends on the specific model. Some watches can be viewed before purchase, while others are available for collection only after payment.
Please contact us via WhatsApp with the watch details, and we will confirm whether the model is available for viewing or collection only.
This Sinn 503.EZM-1 ships fully insured from our Geneva facility. Standard delivery across Switzerland takes 4 to 5 business days. International shipments to 50+ countries typically arrive within 7 business days. You receive tracking information at the point of dispatch. Original papers, no original box is included with this piece.
This Sinn is listed in Used (Good) condition, assessed across case, dial, bezel, crystal, and bracelet by our in-house certified watchmaker before listing. Real photographs on this page reflect the actual state of the watch. Original papers, no original box is included. A Watch Certificate digital passport is available on request for independent verification of the watch's details and service history.
Real impressions from clients who worked with our team and received their watches.
Products in this list are selected by similar characteristics and approximate price.
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