







The Undone Slim Black - 4.9mm
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Estimated shipping: Mid-May
Orders will be shipped sequentially based on purchased date.
Thinner than your phone. Sharper than ever.
The UNDONE Slim 4.9mm Black Edition pushes minimal design into a more striking direction. At just 4.9mm, it stands among the thinnest watches in the microbrand space, refined into a full black case and bracelet, produced in limited quantities.
For perspective:
iPhone ≈ 7–8mm
Pencil ≈ 6–7mm
UNDONE Slim = 4.9mm
Built with a 37mm stainless steel case and powered by a Swiss Ronda movement, it delivers precision in a form that feels almost invisible on the wrist. The dark finish adds depth and presence, while keeping the silhouette clean and understated.
Minimal by design, it slips effortlessly under your cuff, never adding bulk, just a sleek, confident edge. Choose from Black, Blue, or Silver sunray dials, each shifting subtly with light against the black case.
Finished with custom caseback engraving, the Black Edition is not just minimal, it’s personal.
Stealth outside. Story underneath.
MOVEMENT
Swiss Ronda 1062 movementWARRANTY
12 Month Warranty from purchase dateDIMENSIONS
Case Width - 37mm excl. crownCase Thickness - 4.9mm incl. crystal
WATER RESISTANCE
30m / 3 ATMMATERIALS
316L Stainless Steel BlackLEXAN Crystal

"UNDONE is known for their work in integrating pop culture icons, such as Hello Kitty and VTuber group hololive, into elegant high-end timepieces..."
"This is a brand that truly listens to its customer base, frequently launching new models with new features and highly desired retro designs."
Slides Under. Stands Out.
Clean construction. Personal finish.