GOBLOW // JOURNAL
How Long Does PVD Coating Actually Last? Honest Answer.
Most content about PVD coatings falls into one of two camps. The marketing camp says it lasts forever, scratches off nothing, survives anything. The vague camp says it's "very durable" and leaves it there. Neither is useful if you're about to spend money on a piece you plan to wear every day.
Built for this? See our lifetime threading warranty.
Here is the honest answer, with numbers.
Quick recap: what PVD actually is
PVD stands for Physical Vapour Deposition. The piece is placed in a vacuum chamber, and the coating material is vaporised and bonded to the surface at a molecular level. The result is a coating that is part of the substrate, not sitting on top of it. Plating is a layer of metal stuck with an adhesive bond. PVD is fused into the surface. Plating peels. PVD doesn't — it can only wear, and it can only wear from the outside in.
Full technical comparison in the TiO2 vs PVD post. For now: PVD is bonded, not stuck.
The honest answer: years, not forever
"Forever" is a marketing word. The honest answer for PVD on a piece of EDC jewellery worn the way GoBlow is worn:
- 3 to 7 years of daily heavy wear before any visible change appears on the highest-contact edges — typically the thread interface and the lock face.
- Essentially permanent on the main body, the chain bail, and any surface that doesn't take direct friction.
That range is wide on purpose. It depends on how often you wear it, what you wear it next to, and how you store it. Someone threading and unthreading it ten times a day in a sandy environment is at the lower end. Someone who wears it on a chain and rarely opens it is well past the upper end.
What actually wears PVD down
What wears PVD:
- Direct abrasion at high-contact edges — the thread shoulder where two pieces twist together
- Storage against other metal pieces — grit transfers and scratches the surface
- Abrasive cleaners — polishing pastes, scouring compounds, toothpaste-style "metal cleaners"
What does NOT wear PVD:
- Sweat — PVD is chemically inert against the salts and acids in human sweat
- Water, saltwater, chlorine — submersion has no effect
- UV exposure — the colour is structural, not pigmented
- Soap, perfume, sunscreen, cologne — none contain anything aggressive enough to damage the coating
Graceful degradation — the part that matters
Plating fails by peeling. PVD fails by thinning. One looks broken. The other looks intentional.
When plating wears, it lifts. You get a flake, then a patch of bare metal next to original colour. It looks like damage. When PVD wears, the coating gets thinner until the underlying steel shows as a hairline highlight. No flake, no peel, no patch. The transition is gradual and even. People who've owned PVD watches for a decade describe the high-contact edges as "satin" rather than "damaged." The piece ages the way a quality leather wallet ages — you can see where it's been used.
Steel as the forever option
If five to seven years isn't a long enough horizon, the answer isn't a different coating. It's no coating. The Steel finish is solid machined stainless steel throughout. There's nothing on the surface to wear because the surface and the substrate are the same thing. It can be scratched, but a scratch in steel polishes out. There is no failure mode that ends in "the colour came off."
Comparison: PVD on a luxury watch bezel
The same PVD process used on GoBlow is used on the bezels of luxury dive watches. The consensus across watch communities — after decades of real-world data — is that PVD lasts 5 to 10 years of daily wear before the highest-contact edges begin to show base metal. The body of the case stays intact essentially indefinitely. GoBlow is worn the same way. The lifespan tracks the same numbers.
How to extend the life of the coating
- Soft cloth only. Microfibre, dry or with a drop of water. No polish, paste, toothpaste, or metal-cleaning compound.
- Don't store it with other metal. A small pouch, a dedicated tray, anywhere it isn't bumping against keys or rings.
- Don't over-tighten the thread. Hand-tight, no tools. Cranking it down hard accelerates wear at the only point that actually wears.
Which finish lasts longest, ranked
- Steel. Permanent. There is no coating to fail.
- Rainbow. TiO2, not PVD — the colour is structural to the oxide layer. Doesn't delaminate. Outlasts PVD on the same piece.
- Black, Gold, Rose Gold. All PVD, same chemistry, same lifespan: 3–7 years on contact edges, essentially permanent on the body.
If your worry is "will this still look right in five years," the answer for any finish is yes. If your worry is "will this still look right in twenty," buy Steel.
Related reading:
Continue reading
Ready to carry the full setup? See the Pendant + Stacks Carry Kit.