Morning: perfect. Afternoon: too tight. Evening: too loose. Heat, cold, and movement change your wrist — your bracelet can’t keep up.
On The Fly fixes that with instant, tool-free ±5 mm adjustment, completely hidden under your clasp. You’ll never see it, and neither will anyone else — except they’ll notice your watch always sits perfectly.
Always Perfect – Comfort on demand, in seconds.
Invisible Upgrade – Discreetly tucked under the clasp, preserving your watch’s original look.
Luxury Craftsmanship – Same 316L stainless steel grade as Tudor, with a flawless aesthetic match.
Easy 1-Minute Install – All you need is a screwdriver, install once and adjust forever.
Reversible – Install once, remove anytime, no trace.
Once you try it, every other bracelet will feel wrong.
Installs exactly like a factory link — no modification, no damage, fully reversible. Done in under two minutes with a 1.6 mm flat-blade screwdriver.
We don’t make “universal” links. Every Steel Reef component is individually designed for a specific Tudor reference and cut from the same grade of steel your watch is made from. Machined to ±0.02 mm, our links match OEM-inspired tolerances and finish so precisely that they disappear into your bracelet — the only difference is the improved comfort and balance. This level of precision takes time, expertise, and cost to achieve, which is exactly why serious collectors choose Steel Reef.
If it doesn’t look, feel, and fit like it belongs on your Tudor, send it back for a full refund.
We take pride in the exceptional quality and craftsmanship of our products, each inspired by OEM standards.
We are not affiliated, associated, endorsed by, or in any way officially connected with any watch brands. Our parts are aftermarket accessories, designed with quality and precision.
This is a game changer for the BB GMT. I can finally wear it after I workout in the morning with a larger wrist and make it tighter later in the day at work.
Every watch should have this system.
D
Donald B.O. (Canton, US)
I love this baby!
I purchased my BB58 after wanting one for years of collecting, but not being patient enough to save enough for the BB58. This watch has been on my radar since day 1 and I'm loving it more everyday. The one complaint I had was the lack of half-links as well as the small amount of micro-adjust. The Steelreef Easy Link plus Steelreef quick release endlinks(which i will be buying)are absolute game changers. I might add a Uncle Seiko half-link in the future also, but if Steelreef ever decides to do BB58 half-links I'll likely buy from them due to their superior quality!
K
K.C.
Perfect addition to my Tudor Harrods…. Well made and very easy to install.
J
Jimmy (San Francisco, US)
Totally worth it
I was hesitant at first but once I set it up it worked incredibly well. if you wear your BB58 a lot i say get it.
T
Tom (Miami, US)
Delta Black Bay GMT
I just received my "on the fly" comfort link and installed it right away. Anyone who has experience with the Rolex Easylink will appreciate the comfort and adjustability it provides. It works exactly the same and is top quality. I highly recommend!
