The Omega Speedmaster is one of the most strap-versatile watches ever made. The same Moonwatch that went to the lunar surface looks equally at home on a steel bracelet, a rich leather strap, a NASA-style fabric strap or modern rubber — and because it uses a standard 20mm lug width, swapping between them is quick and endlessly rewarding. This guide walks through every option for a Speedmaster, the sizing you need, and how to fit and care for each.
Why the Speedmaster loves a strap change
Part of the Speedmaster’s appeal is how completely its character shifts with the band. On a bracelet it is a polished daily watch; on black leather it turns dressy; on a striped fabric strap it channels its space-programme history; on rubber it becomes a sports piece. The 20mm lug width — standard across the Moonwatch and most Speedmaster references — means the watch accepts a huge range of straps, so you are never short of ways to reinvent it. That flexibility is exactly why so many Speedmaster owners build a small collection of straps rather than settling on one.
Leather: the classic dress option
Leather is the timeless way to wear a Speedmaster. It warms up the black dial and steel case and takes the watch comfortably from the office to dinner. Black and brown are the safe, versatile choices; a mid-brown in particular gives the Moonwatch a vintage, tool-watch warmth that suits its heritage.
Our genuine leather strap for the Speedmaster, Seamaster and De Ville is a 20mm fit with an 18mm buckle taper and a choice of buckle colours — one strap that covers three Omega families. Keep leather away from prolonged water, and it will develop a personal patina over the years. Browse more in the Omega leather straps collection.
Steel bracelet: the everyday all-rounder
A steel bracelet is the most versatile way to wear a Speedmaster day to day — smart enough for work, tough enough for anything, and balanced nicely against the chronograph case. Our stainless steel bracelet for the Speedmaster and Planet Ocean fits 20mm and 22mm cases with a secure deployment clasp, and its solid links give the dense, quality feel you want on an Omega. It is the natural default if you want one band that does everything.
Fabric and NATO: the space-programme look
No watch wears a fabric strap with more authenticity than the Speedmaster. During the Apollo era, astronauts wore the Moonwatch on a long Velcro strap over their spacesuits — a piece of history that makes a striped NATO or textile strap feel completely at home today. Fabric is also light, breathable and endlessly colourful, and it lets the watch pass under the cuff or sit high on the wrist. It is the most casual, characterful way to wear a Speedmaster, and the cheapest way to own several looks at once.
Rubber: sport and summer
For hot weather, water and an active day, rubber turns the Speedmaster into a sports watch. Modern FKM and silicone are supple, waterproof and easy to clean, and they lighten the watch compared with a bracelet. A curved-end rubber strap sits flush against the case for an integrated look. Explore the Omega rubber straps collection for options that also fit the Seamaster and Planet Ocean.
Sizing: the Speedmaster is 20mm
The Speedmaster Professional Moonwatch, and most other Speedmaster references, use a 20mm lug width, usually tapering to 18mm at the buckle or clasp. That standard width is good news: it opens up almost the entire strap market. If your Speedmaster is an unusual variant, or you simply want to be sure, measure the gap between the lugs or check our lug width guide before ordering.
How to change a Speedmaster strap
All you need is a spring-bar tool. Rest the watch face-down on a soft cloth, slide the tool between the strap and the lug, compress the spring bar until one side releases, and lift the strap out. Fit the new strap by seating one end of the bar in its lug hole, compressing the other end and guiding it into place until it clicks. Always tug both sides to confirm the bars are locked before wearing the watch. A NATO or fabric strap is even easier — it simply threads through the fixed spring bars with no tools at all.
Caring for each material
Rinse rubber and steel with warm water after salt, chlorine or sweat, and brush between steel links occasionally to keep them bright. Keep leather dry and wipe it with a slightly damp cloth when needed. Fabric straps can be hand-washed and air-dried. A few minutes of care keeps any Speedmaster strap looking its best for years.
Which should you choose?
Choose leather to dress the watch up, a steel bracelet for the versatile daily default, fabric for casual, historic character, and rubber for sport and summer. Because the Speedmaster is 20mm and swaps take minutes, the best answer is usually a small rotation. Browse everything in the Omega collection, or jump to leather, bracelets and rubber.
Frequently asked questions
What size strap does an Omega Speedmaster take?
The Speedmaster Professional Moonwatch and most Speedmaster references use a 20mm lug width, usually tapering to 18mm at the buckle. Measure between the lugs to confirm if you have an unusual variant.
Can you wear a Speedmaster on a NATO strap?
Yes, and it is deeply authentic — Apollo astronauts wore the Moonwatch on a long Velcro strap over their spacesuits. A 20mm NATO or fabric strap threads through the spring bars with no tools and gives the watch a casual, historic look.
What strap is best for a Speedmaster?
There is no single best — it depends on use. Leather dresses it up, a steel bracelet is the everyday all-rounder, fabric is casual and historic, and rubber suits sport and water. Many owners keep several and swap to suit the day.
Do I need tools to change a Speedmaster strap?
A basic spring-bar tool is all you need for leather, rubber or a bracelet, and the swap takes a few minutes. A NATO or fabric strap needs no tools at all, as it threads through the existing spring bars.