WristPop Case-Strap for the Swatch x AP Royal Pop Blaue Acht
Change it in seconds
How the strap swap works
The Strap Change Tool ships in every Case Kit. Read the full setup guide
The Blaue Acht, German for "blue eight", is the blue Lépine in the Swatch x Audemars Piguet Royal Pop collection. A BIOCERAMIC pocket watch with no lugs and no strap, by design.
WristPop puts it on your wrist. A TR90 case frame snaps around the watch and gives it what it never had: lugs. An FKM rubber cut-to-size strap tailors the fit to your wrist, and a deployant clasp closes it with a cover colour-matched to the case. One system, designed together. No drilling, no glue, no permanent modification, and fully reversible.
Pick your case colour and any of the 14 strap colours. Every wearing part is replaceable, two spare clasp covers ship in every box, and if the case frame or the clasp cover breaks, we replace it free, for as long as you own it, no questions asked.
Pre-orders ship from late September. Production is already underway.
What's Included
Product Guide
Setup and how-to tutorials: fitting your Royal Pop, cutting the strap to size, and the clasp, with videos.
How to fit and wear your Royal Pop case-strap
Step 1 · Attach the Royal Pop
The bioceramic Royal Pop clicks into the WristPop case easily. Secure with no wiggle, and fully reversible.
Step 2 · Size the Strap
Size the FKM rubber strap for a perfect fit on your wrist. No unsightly excess strap sticking out.
Step 3 · Now It Fits.
Wear the Royal Pop on your wrist. Change out the case or strap easily whenever you want to refresh the look.
Why it works
Built as one system.
Secure, slim and compact
Moulded in TR90 nylon with fiberglass: it clicks in, stays in, and does not shift on your wrist. Slim enough to keep the octagonal frame visible, compact enough to fit a 13.5cm wrist.
One size fits you.
Cut-to-size FKM rubber: measure once, cut with scissors, no holes and no excess tail. The clasp cover comes in the same case material and colour, with a tapisserie texture that matches the dial of the Royal Pop.
One watch. 238 looks.
Seventeen cases, fourteen straps, all matched to the Royal Pop’s colours. Every model has a bezel-matching pairing we recommend, and the Strap Finder below shows all 238 on your exact model.
Every model in the Royal Pop collection
WristPop Case-Strap for the Swatch x AP Royal Pop Otto Rosso
WristPop Case-Strap for the Swatch x AP Royal Pop Huit Blanc
WristPop Case-Strap for the Swatch x AP Royal Pop Green Eight
Viewing
WristPop Case-Strap for the Swatch x AP Royal Pop Blaue Acht
WristPop Case-Strap for the Swatch x AP Royal Pop Orenji Hachi
WristPop Case-Strap for the Swatch x AP Royal Pop Ocho Negro
WristPop Case-Strap for the Swatch x AP Royal Pop Lan Ba
WristPop Case-Strap for the Swatch x AP Royal Pop OTG ROZ
Strap Finder
Explore all possible combinations
If it breaks, we replace it
Case frame or clasp cover, free, for as long as you own it.
No import fees
All duties prepaid, worldwide.
Easy returns
Changed your mind? Send it back.
Secure checkout
Encrypted, safe payment.
FAQs
How does the WristPop case-strap work?
A TR90 case frame cradles the Swatch × AP Royal Pop and an FKM rubber strap fits to it, so the pocket watch can be worn on the wrist. It ships pre-assembled: your strap arrives fitted to the case, ready for the watch.
Will it damage or modify my watch?
No. The fit is non-destructive: no drilling, no glue, no permanent modification. Your Royal Pop is unharmed and can go back to pocket-watch form anytime.
What if a part breaks?
If the case frame or the clasp cover breaks, we replace it free, for as long as you own it, no questions asked. Beyond that, every wearing part is replaceable: frames, clasps and clasp covers are all available individually, the clasp cover is designed to bend rather than snap, and there are two spares in your Case Kit.
Can I mix case and strap colours?
Yes. Choose any case colour and any strap colour for your model. The original matched set is suggested by default, but every combination is available.
When will my order ship?
Pre-orders ship from late September 2026, and the earlier you order, the earlier yours ships. You'll get tracking the moment yours leaves us.
What is the case made of?
TR90, a light and durable engineering polymer, colour-matched to your model. (The Royal Pop watch itself is bioceramic.)
