JellyLab Watches · Houston, TX

Hi, I'm Luke. Nice to meet you.

Custom Casio mods, built by hand, one at a time.

3,000+
watches built by hand
150K+
on YouTube
4.9
across 379+ reviews
48+
countries shipped to
How JellyLab Started

You might be wondering how I got here.

I used to work in finance. It was a good job with good benefits, but I wasn't satisfied.

On the side, I'd been modding the Casios in my small collection. Friends and family started noticing them on my wrist and asking if I'd build them one. Nobody was making videos about how any of it actually worked, so I propped up my phone and started filming. I posted the builds to YouTube and Instagram, and strangers started asking for watches too.

In a little over a year, modding became my full-time job, with 3,000+ watches built and shipped to 48+ countries.

The first JellyLab builds
Back when I was working in Finance (feat. Theo)
Luke in the current workshop
My most recent shipment in my workshop.
The process

How your watch gets built

Built in 7 to 10 business days, plus shipping
01
Order

Pick a finished design or spec a custom build. Every order goes into the same queue at my bench.

02
Genuine new donor

Every build starts with a brand-new, genuine Casio. Never used, never a knock-off.

03
Modding

Disassembled and modified with filters, decals, cases, and straps, then reassembled and inspected by hand.

04
Box creation

Your box is 3D-printed and hand-assembled a few feet from the bench, in your selected color.

05
Shipping

Packed and shipped from Houston to anywhere in the world, with tracking.

14 day, no questions asked return policy if anything isn't perfect. Excludes custom designs, though workmanship is still guaranteed.

The Box Lab

Even the box is homemade, and it comes with every watch.

The factory Casio boxes have a few problems: they aren't especially durable, they aren't unique, and they have no room for extra accessories.

So I worked with Swiss industrial designer Luckyshroom to create a box built specifically for my completed mods, then invested in a micro-manufacturing line so I could 3D print them a few feet from my workbench, and swap in new colors for truly custom options.

Every box is assembled by hand before it ships. It protects the watch far better in transit, and gives it somewhere proper to land when you aren't wearing it, with room to spare for straps and accessories.

Each box takes 3 hours to print, but it is worth it.
Finished JellyLab boxes in a row
A watch sitting in its JellyLab box
YouTube and Instagram

I believe in building in public.

The YouTube channel is where JellyLab started, and it's still the best proof I can offer: dozens of videos of real builds, real mistakes, and real fixes. If you want to know exactly how I work before you order, it's all there.

4.9 across 379+ reviews

Read all reviews →
★★★★★

"I rarely leave reviews, but in this case, I had to. The watch is simply gorgeous. I own a few expensive watches, yet this one has quickly become my favorite to wear. Every single day, someone asks me about it. Complete strangers at that."

Kery B.
Stained Glass V1 Casio Royale · Verified buyer
★★★★★

"Love the watch! This is my new daily. I literally wear it more than my Rolex. Thank you."

Rhys R.
Radar Casio F-91W · Verified buyer
★★★★★

"I work at an automotive shop and was wearing a Black Bay as a daily but it would occasionally get banged up. This watch is the perfect replacement. Light and comfortable, totally customizable and replaceable if damaged for far less! I will be ordering the Radar shortly as a back up!"

Jordan S.
Starship Casio Royale · Verified buyer
Luke holding a finished watch

I'd love to make your next watch.

Thanks for your time. Want to get in touch?

Questions / Support support@jellylabwatches.com
Media / Collaboration hello@lukebuildswatches.com
Luke's signature