Every model in the AP x Swatch Royal Pop collection is the same idea in a different colour — a playful nod to the eight screws of the Royal Oak. The Làn Ba is the family's deep-blue chapter: the calmest, most versatile shade of the set and arguably the easiest to pair with anything. Like every Royal Pop, though, it ships on a calfskin lanyard alone, so this striking piece stays stuck as a pocket watch. This Royal Pop strap & case set — part of WatchCollab's Audemars Piguet x Swatch straps — turns your Làn Ba into an everyday wristwatch in seconds, with no modification and no compromise on that deep blue.
Built around the exact case geometry of the Royal Pop, the set pairs a colour-matched deep-blue FKM band with a precision adapter case, so your Audemars Piguet x Swatch Royal Pop Làn Ba finally moves from pocket to wrist — and back whenever you like.
The Royal Pop Làn Ba: eight, in deep blue
The Làn Ba keeps every Royal Oak cue — the octagonal bezel, the eight hexagonal screws, the Petite Tapisserie dial — in a deep, refined blue, powered by a hand-wound SISTEM51 movement with over 90 hours of reserve. It's the shade that quietly works with everything, which is exactly why it deserves wrist time instead of drawer time. Our strap and case set is built to keep it there, every day.
From pocket watch to everyday wristwatch
Out of the box the Làn Ba only offers lanyard wear. The WatchCollab set closes that gap with two parts that work together: a precision adapter case that cradles the watch head snugly and rattle-free, and a premium deep-blue rubber Royal Pop strap ready to wear the moment it arrives. Fitting takes seconds and is fully reversible — the watch returns to its original lanyard configuration just as easily.
Built for the Royal Pop's exact geometry
This is no generic band. Case and strap are engineered specifically for the Royal Pop and work with both layouts of the collection — crown at 3 and crown at 12. The adapter frames the watch so the octagonal bezel, the eight screws and the deep-blue Petite Tapisserie dial stay on full display, while protecting the case edges from knocks.
Premium materials, all-day comfort
The strap is high-grade FKM rubber — supple from the first wear, sweat- and water-resistant, UV-stable so the blue stays deep and true, and hypoallergenic for sensitive skin. Light on the wrist, it wipes clean in seconds and is built for daily wear, sport and travel. The adapter case is precision-machined for a secure, scratch-free hold.
The easiest blue to live with — or mix it up
This set is tuned to the Làn Ba's deep-blue identity, but every WatchCollab Royal Pop strap and case is cross-compatible. Keep it tonal for an understated everyday look, or contrast it with a brighter colour from the family. Prefer stealthy monochrome? See the Royal Pop Ocho Negro strap & case in black.
How to fit your Royal Pop Làn Ba strap and case
- Remove the Làn Ba from its lanyard.
- Seat the watch head into the WatchCollab adapter case until it clicks securely into place.
- Attach the rubber strap and adjust to your wrist.
- Check the hold with a gentle pull — there should be no play. You're ready to wear.
Caring for your strap
Rinse the deep-blue strap with fresh water after heavy sweat or exposure, and clean it with mild soap and a soft cloth. Avoid harsh chemicals and prolonged direct sunlight in storage. With minimal care, the FKM rubber keeps its colour and suppleness for years.
Why WatchCollab
WatchCollab designs independent accessories built to the exact specs of collaboration watches like the Royal Pop Làn Ba — a purpose-made fit, not a generic band, plus a wide, cross-compatible colour range. WatchCollab is not affiliated with Audemars Piguet or Swatch, and the watch is not included.
FAQ
Is the Làn Ba the deep-blue Royal Pop?
Yes — within the Royal Pop family the Làn Ba carries the deep-blue colourway, and this set is colour-matched to it while remaining compatible with the whole collection.
Can I wear the Làn Ba as a wristwatch with this set?
Yes. The set converts the pocket watch into an everyday wristwatch and removes cleanly whenever you want the original lanyard back.
Will it damage or alter my watch?
No. The adapter case holds the Làn Ba without modification and can be removed at any time.
Is this an official Audemars Piguet or Swatch product?
No. It's an independent WatchCollab accessory, compatible with the Royal Pop. The watch itself is not included.
Ready to wear your Royal Pop Làn Ba every day? Explore the full range of Royal Pop straps & cases by model.
The size of our Audemars Piguet x Swatch Royal Pop straps
Our Royal Pop strap & case combo is custom made to fit the Audemars Piguet x Swatch Royal Pop, turning your pocket watch into a wristwatch you can wear every day. The strap has a standard, adjustable size that fits all wrists.
Case: 42mm bioceramic, custom fitted for the Royal Pop, with push-pin spring bars
Wrist circumference: 13-25cm | 5"-12"
Strap material: premium rubber — waterproof, anti-UV, dustproof and hypoallergenic
Strap width: 20mm
Buckle width: 18mm.
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Our products are designed specifically for Swatch collaborations.
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