Privacy Policy
Last updated · 12 April 2026
1. Introduction
This Privacy Policy explains how WatchMargin collects, uses and protects personal data when you use the platform.
WatchMargin is a dealer-focused watch market intelligence platform. We aim to collect only the data reasonably needed to operate, secure and improve the service.
2. What data we collect
Depending on how you use WatchMargin, we may collect the following categories of data:
Account data: such as your email address and account credentials.
Profile and settings data: such as dealer preferences, buffers and account settings you choose to save.
Usage data: such as searches performed, pages viewed, actions taken within the platform and interactions with key features.
Technical data: such as browser type, device information, approximate location derived from IP address, session information and basic diagnostic data.
Communications data: such as password reset requests, verification email events and other account-related communications.
3. How we use your data
We use personal data to:
provide and operate WatchMargin;
create and manage user accounts;
authenticate users and maintain account security;
send verification, password reset and other essential service emails;
understand how the platform is being used and improve product performance;
monitor, troubleshoot and protect the service from abuse, misuse, errors or security issues;
comply with legal obligations where applicable.
4. Legal bases for processing
Where UK GDPR or similar laws apply, we generally process personal data on the basis that it is necessary to provide the service you have requested, to pursue our legitimate interests in operating and improving WatchMargin, or to comply with legal obligations.
Where consent is required, such as when you agree to our Terms of Service and Privacy Policy during signup, we rely on that consent where appropriate.
5. Analytics, cookies and similar technologies
WatchMargin uses analytics and similar technologies to understand usage patterns, improve the product and monitor performance.
This may include the use of cookies, local storage or similar browser-based technologies to recognise sessions, measure interactions and support product analytics.
At MVP stage, this information is used primarily for core product analytics, account flow measurement, gate behaviour analysis, troubleshooting and service improvement.
6. Third-party service providers
We may use third-party providers to help operate WatchMargin. At the time of writing, these include providers used for database and authentication services, analytics, hosting, email delivery and related infrastructure.
This includes services such as Supabase, Vercel, PostHog and Resend. These providers may process personal data on our behalf to the extent needed to provide their services to us.
7. Data sharing
We do not sell your personal data. We may share personal data only where reasonably necessary to operate WatchMargin, comply with the law, protect our rights, enforce our terms or work with service providers supporting the platform.
8. Data retention
We retain personal data only for as long as reasonably necessary for the purposes described in this policy, including operating the service, maintaining account records, resolving disputes, meeting legal obligations and improving the platform.
Retention periods may vary depending on the type of data and the reason it was collected.
9. Security
We take reasonable technical and organisational steps to help protect personal data. However, no system can be guaranteed to be completely secure, and we cannot guarantee absolute security.
10. International processing
Some of our service providers may process data in countries outside the UK. Where that happens, we take reasonable steps to ensure appropriate safeguards are in place where required.
11. Your rights
Depending on the laws that apply to you, you may have rights to request access to your personal data, ask for correction or deletion, object to certain processing, request restriction of processing or request a copy of certain data.
You may also have the right to complain to a relevant data protection authority.
12. Changes to this policy
We may update this Privacy Policy from time to time. The latest version will be posted on this page with the revised date shown above.
13. Contact
If you have questions about this Privacy Policy or would like to make a privacy-related request, please contact us at:
support@watchmargin.com