Fantastic company
Fantastic company. Great strap and the build quality seems great so far. Miles went the extra mile by helping me on the live chat so thank you :)
Aftermarket watch straps for Omega, Tudor, Rolex, Breitling, IWC, Panerai, Hamilton, Seiko,...

The K-Clip is the heart of the Monolock™ system, the proprietary interlocking mechanism that secures your Royal Pop inside the Monocoque.
Monolock is what makes the Monocoque work. Each Aluminium case is CNC machined to a 0.2mm tolerance, and the K-Clips are engineered to sit precisely within that tolerance. Two clips grip-fit into the internal cavities of the case. A moulded nodule on each clip lets your Royal Pop click into place with positive engagement and hold firm.
The precision is the point. The tolerance between the case and your Royal Pop is engineered so the watch is held entirely by the Monolock™ K-Clips, with no metal-on-metal contact against the Bioceramic. The watch sits secure, suspended within the aluminium, never touching it. That is what protects the integrity of your Royal Pop.
You only need to buy this if you've lost or damaged a clip.
Every Monocoque ships with its K-Clips fitted, plus a spare in the box. You do not need to add this to your order when buying a Monocoque. If you lose or damage a K-Clip within two years, email us and we'll post a replacement free. This listing is a spare pair for anyone who'd rather keep a full set to hand.
Specifications
The Monolock™ interlocking system is proprietary to MGB Watches. Each K-Clip is additively manufactured in engineered polymer, a process that holds fine tolerances and lets us refine the Monolock geometry to an exact fit. The same approach used in engineering prototyping and precision components.
The K is for Keith, our head designer. He earned it.
Free tracked delivery
Guaranteed next day – £9.95
Free FedEx Priority shipping on orders over $120 to the US, C$190 to Canada, A$200 to Australia, NZ$240 to New Zealand and £100 everywhere else. Below that, the cost is shown at checkout.
No fees on delivery
Delivery times (FedEx, shipped from London – order by 2pm UK time Monday to Friday and it ships the same day)
You have 14 days from delivery to start a return through our returns portal. Items must be unworn and in their original packaging. Personalised and engraved items can’t be returned.
All UK orders ship within 24 hours of payment confirmation, Monday to Friday. Standard UK delivery is free and typically arrives within 1–2 working days.
Yes. All MoonSwatches sold by MGB are sourced directly from Swatch boutiques and supplied with their original packaging and documentation.
Each product page lists the exact lug widths it fits. If you're unsure, contact us with your watch model and we'll confirm compatibility.
Our straps fit wrists from 140mm to 200mm in circumference. Each product page lists exact strap lengths to help you choose.
Unworn items in their original packaging can be returned within 14 days of delivery. Personalised and engraved items can’t be returned. See our returns policy for full terms.