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MJJ Exclusive Warranties

We understand that the watches, jewellery and accessories we sell will hold huge sentimental value in your life. Which is why all MJJ products come with a warranty.

This will either be an original manufacturer’s warranty, or a MJJ warranty. For your interests, the longest will apply.

Watches: For all watches, we will match the remaining warranty of the original manufacturers, or provide a 2 year MJJ warranty.

Customised watches: For customised watches MJJ will cover both the customisation and the functions/movement of the watch.

Jewellery: Jewellery of the best quality lasts a lifetime, so our jewellery warranty is lifelong.                                           

Accessories: All accessories are covered by MJJ’s 2 year warranty. This includes all customisations and manufacturing faults.

In the instance of a faulty item, our warranty will cover the repair of the item completely free of charge. Please note, our warranty excludes accidental damage, such as denting, pulled claws and chipped diamonds. As well as malfunctioning products that have received knocks and/or anything similar which is not deemed a mechanical or intrinsic fault by our specialists. In addition our warranty does not cover theft, loss, water damage, or damage caused by overt use outside of everyday wear. The addition or substitution of any aftermarket components or products, not provided by MJJ, will also automatically void the warranty.

Customisations: All watches will need to be serviced and all accessories or jewellery will need to be inspected by our specialists before any customisations can be completed. Quality is a dealbreaker for us. If a customisation may negatively affect the function or structural quality of your item, we will advise you of this and work to find an alternate customisation you equally love.

If you’d like to discuss your warranty with us, please give us a call on 0330 124 3591.



We’re jewellers who give a shit. This means that we’re dedicated to bringing you the best possible experience and buyer’s journey. So, we offer a 14-day trial period on any items purchased directly through the MJJ website. If for any reason you are not entirely satisfied with your purchase, MJJ offer the option for an exchange or refund.

To find out more about our 14 Day Money Back Guarantee, give us a call on 0330 124 3591, or check out our extended returns policy.