

POPBUILDS — Full Mod
Royal Pop.
Finally done right.
A full custom steel build, re-engineered with an automatic movement and sapphire crystal.
Ocho Negro · 999 €
Automatic NH35 · Sapphire crystal · 41 mm stainless steel
Only 5 available
- Free EU shipping
- Hand-assembled
- EU warehouse
Independent aftermarket build — not affiliated with or endorsed by any watch manufacturer.
Hand-built
Individually assembled
Automatic
NH35 automatic movement
Sapphire
Sapphire crystal
Stainless steel
41 mm steel construction
EU shipping
Fast dispatch from our EU warehouse
Limited batches
Small runs, never mass-produced
Collection
The full mods
Eight distinctive builds. Each assembled individually.
The mission
Built
different.
POPBUILDS exists to take distinctive pop-inspired designs and rebuild them into substantial mechanical timepieces.
Every build combines an aftermarket dial with a full stainless-steel case, automatic movement, sapphire crystal and integrated steel bracelet.
Each watch is individually assembled in limited batches, with attention paid to the details that make the finished piece feel like a completely different watch.
Specification
The build
Four constants across every POPBUILDS timepiece.
- Full steel
- 41 mm stainless-steel construction
- Automatic
- NH35 automatic movement
- Sapphire
- Sapphire crystal front and exhibition caseback
- Hand-assembled
- Each build individually assembled

Sizing
Fits every wrist
Extra links and the sizing tool are in the box — adjust it yourself in minutes.
- Extra links included
- Every watch ships with spare stainless-steel links in the box, so the bracelet can be extended as well as shortened.
- Tool in the box
- A link removal tool and pin pusher are included — no watchmaker, no jeweller, no appointment needed.
- Two-minute fit
- Push out a pin, add or remove links, push the pin back. Illustrated instructions are included with every order.
- Fits every wrist
- With the supplied links the bracelet adjusts across roughly 14–21 cm, covering slim to large wrists.
The difference
Why POPBUILDS?
Custom builds
Every watch is individually assembled.
Mechanical
Automatic movement instead of a basic quartz setup.
Full steel
Substantial stainless-steel case and integrated bracelet.
Limited batches
Small quantities rather than mass-produced inventory.
Customer feedback
Rated 4.9 / 5 by our first owners
4.9 / 5 average rating from 38 customers who bought POPBUILDS builds directly from us before this store opened.
4.9
Feedback collected directly from customers of our first hand-assembled batches. We publish only ratings our customers actually gave us — no incentivised or fabricated reviews.
“Absolutely love the Ocho Negro. The steel case feels way more substantial than I expected and the dial looks insane in person. Really happy with it.”
“Beautiful watch. The finishing on the case and bracelet is honestly my favorite part. Shipping was also surprisingly fast.”
“Got the Otto Rosso. Photos don't really do the color justice. Looks fantastic on the wrist.”
“Very clean build and feels premium. The automatic movement was a big reason I went for it.”
“10/10. Packaging was great, watch arrived perfectly protected and it looks even better in person.”
“Was a little hesitant spending this much on a mod, but I'm really impressed with the result. The bracelet feels solid and comfortable.”
“Super unique watch and I've already had several people ask me about it.”
“Really happy with the purchase. Very nice weight, great proportions and the dial has so much character.”
“The green one is absolutely stunning. Really like the combination of the colorful dial with the steel case.”
“Fantastic piece. Came quickly, was well packed and everything was exactly as described.”
“Honestly one of the coolest watches I've bought. The whole build feels very well put together.”
“Really nice watch and the dial looks amazing. The only reason I'm giving 4 stars is that I would have preferred slightly more adjustment range on the bracelet. Otherwise very happy with it.”
Aftermarket · No brand affiliation
POPBUILDS is an independent aftermarket custom watch brand. Every timepiece is our own hand-assembled build using aftermarket components. We are not affiliated with, endorsed by, licensed by or sponsored by any third-party watch manufacturer.
Support
Frequently asked
The builds, the components and how we ship.
Assurance
Shipping & guarantee
Free shipping
Free shipping on POPBUILDS watches.
EU warehouse
Orders are dispatched from our EU warehouse.
Fast delivery
Typical delivery is within a few days, with a maximum expected delivery window of approximately two weeks.
Build guarantee
If your watch arrives damaged or has a problem caused by our assembly, we'll make it right with a free replacement or appropriate remedy.
Explore
Browse by category
Full mods, automatic builds, integrated bracelets — start where it makes sense for you.
Full mod watches
A full mod is a watch that has been rebuilt rather than customised at the edges. POPBUILDS assembles every one by hand in stainless steel, with an automatic movement and sapphire crystal.
Automatic mod watches
Every POPBUILDS build is automatic. No battery, no quartz — a self-winding Seiko NH35 you can see working through the sapphire caseback.
Stainless steel mod watches
Case, bezel, bracelet and clasp: stainless steel throughout, finished by hand and built around a 41 mm octagonal case.
Integrated bracelet automatic watches
The bracelet is part of the case, not an accessory attached to it — the format that defines the modern steel sports watch.
41 mm automatic watches
41 mm across, 12 mm thick: the case size that reads as a proper sports watch without overhanging the wrist.
Aftermarket watches
POPBUILDS is an independent aftermarket brand. Here is exactly what that means before you spend money.
POPBUILDS
Find your build.
Eight distinctive full-mod timepieces. One POPBUILDS standard.






