How to Change a Watch Strap

This is the single most useful skill in watch ownership, because the strap is the cheapest part of a watch and the part that most changes how it feels. Owning three straps for one watch is a better use of $70 than almost anything else you can spend it on — our strap material guide covers how to choose them. What stops people is a reasonable fear of scratching the case, and that fear is entirely addressed by using the right tool and working on a towel.

A spring bar tool. Not a screwdriver, not a butter knife, not a bent paperclip. The forked end is designed to straddle the bar and catch its shoulder; a blade slips, and when it slips it slides across the lug and leaves a bright line in the brushed finish that no amount of polishing fully removes.

A soft surface. A folded towel or a microfibre cloth. Working on a bare desk is how crystals get scratched, and on a glass table it is how watches get dropped.

Light. You are looking for a gap under a millimeter wide. A desk lamp makes the difference between a thirty-second job and ten minutes of frustration.

For a steel bracelet, also a pin pusher or screwdriver. Links are held by either friction pins, screws or split pins, and each needs a different approach — covered below. Our watch tools guide covers the fuller kit if you intend to do this often.

A spring bar is a small tube with a spring inside and a sliding collar at each end. Under tension the collars push outward into the drilled holes on the inside faces of the lugs, which is what holds the strap on. Compress either collar and the bar shortens enough to drop free.

There are three variations worth recognizing before you start. Standard bars sit entirely inside the lugs and must be reached from the gap between strap and case. Drilled lugs have a visible hole through the outside of the lug, so you can push the bar in from the outside with a pin — far easier, and the mark of a watch designed by someone who changes straps. Quick-release bars carry a small lever on the underside of the collar that you pull with a fingernail.

1. Set up. Watch face-down on a folded towel, under good light, with the new strap already unpacked and the right way round so you are not hunting for it one-handed.

2. Find the gap. Push the strap gently toward the centre of the caseback to open a little space between it and the inside of the lug. You are looking for the shiny collar of the spring bar.

3. Catch the collar.Slide the forked end of the tool into the gap so the fork straddles the bar and the tip sits against the collar's shoulder. Keep the tool parallel to the bar, not angled toward the case — the angle is what causes slips.

4. Compress and tip out. Press the collar inward along the axis of the bar while rotating the strap away from the case. One end releases; the other usually falls out on its own. If the bar is stubborn, stop pushing harder and re-seat the fork — force is never the answer here.

5. Fit the new strap.Thread the spring bar through the new strap's loop, locate one collar in its lug hole, compress the other with the tool and guide it in until you feel and hear it click home.

6. Test before you wear it. Hold the watch head and pull each half of the strap firmly away from the case. A properly seated bar does not move. This is the step people skip, and a strap that releases while you are walking is how watches hit pavements.

A quick-release spring bar has a small lever on the collar at one end. Pull it sideways with a fingernail and the bar shortens, the strap comes away, and the whole operation takes about five seconds per side with nothing in your hand.

This is the single feature most worth looking for when buying a strap, and it is why we recommend quick-release straps for anyone who expects to swap between a leather strap for work and something washable for the weekend. The only caveat: quick-release bars are slightly thinner than standard ones at the collar, so on a watch with unusually deep lug holes you may prefer standard bars for security. That is rare.

Fitting a steel bracelet is the same spring bar job at the ends, plus removing links to get the length right. Links are held three ways and the approach differs for each.

Friction pins. Push out with a pin pusher from the arrow direction marked inside the bracelet, supporting the link in a block so you are not pushing against air. These are the most common and the easiest.

Screws. Use a correctly sized flat screwdriver and a drop of thread-lock on reassembly, because bracelet screws back out over months of wear and that is how people lose a watch.

Split pins with collars. The collar is a tiny C-shaped sleeve that likes to vanish into carpet. Work over a tray.

Remove links symmetrically — the same number from each side of the clasp — or the clasp ends up sitting off-centre on your wrist. And size the bracelet in the afternoon: wrists swell by as much as half a link through the day, which is exactly what clasp micro-adjustment exists to absorb. If you do not know your wrist size, our wrist measuring guide takes two minutes.

Two tools cover everything on this page, and a quick-release strap means you will rarely need either again.

Live Amazon price: $14.99 — as of October 21, 2026. Prices move daily; the figure at checkout is the one that applies.

The link kit is only worth buying if you own a bracelet you intend to size yourself. It is also the pick that leads our watch accessories for women guide, for the same reason: a bracelet that fits properly is the difference between wearing a watch and tolerating it.

Live Amazon price: $11.99 — as of October 21, 2026. Prices move daily; the figure at checkout is the one that applies.

1. Using a blade. A flat screwdriver or knife will slip, and it will slip across the lug. This is the origin of most scratched lugs on otherwise well-kept watches.

2. Angling the tool toward the case. Keep the tool along the axis of the bar. Levering toward the caseback puts the tip exactly where you do not want it.

3. Reusing a tired spring bar. Bars are consumable — if a collar feels soft or the bar does not click home, replace it. A pack costs a couple of dollars and a failed bar costs a watch.

4. Not testing the fit. Pull each side hard before you put the watch on. Every time.

5. Doing it on a watch you should not. On an integrated-bracelet watch — the Tissot PRX, most Royal Oak-style designs — the bracelet is part of the case geometry and there is no 20 mm strap that fits. Check before you buy a strap, not after. Our PRX review covers what that limitation means in practice, and on a watch under warranty that uses screwed lug bars, a dealer doing it for free is the better call.