Your First Mod: the 5-Minute Checklist

Modding sounds like a bench, loupe and steady hands. In reality your first mod is a strap swap, takes five minutes, and is completely reversible. Here’s the whole checklist.

The kit

  • One spring bar tool (or a straightened paperclip in a pinch, honestly)
  • A soft towel as your work surface
  • Your new strap — with the right width for your watch

The five steps

  1. Confirm the width. 22mm for SKX/Duro/CasiOak-with-adapter, 20mm for Alpinist/SKX013, 18mm for F-91W/AE-1200, size-class for Apple Watch. Width is printed in every strapmod listing.
  2. Towel down, watch face-up, strap pointing at you.
  3. Press the spring bar tool between strap and lug, catch the bar shoulder, compress toward the strap. The old strap lifts free.
  4. Seat the new strap’s bars into the lug holes — you’ll feel the click.
  5. Tug test both ends. A seated bar doesn’t budge. Done.

Three beginner mistakes

  • Ordering the wrong width — the #1 first-mod failure. Measure, or trust the fitment chart on each listing.
  • Fighting a quick-release pin. If your strap has a pull-tab on the underside, you don’t need the tool at all.
  • Modding on a hard desk. The tool slips once and your case wears it forever. Towel, always.

Where to go second

Strap sorted? The rabbit hole order most people follow: adapters → bracelets → full RO-style builds. Welcome to the hobby — it’s all downhill (in a good way) from here.

FAQ

What tool do I actually need?

A spring-bar tool for most swaps on standard lugs — a small flathead works in a pinch but scratches more.

Can a strap swap go wrong?

Only two ways: ordering the wrong width (measure the lug gap first) or launching a spring bar across the room — work over a towel.

Does swapping a strap void anything?

No. Strap swaps never open the case; the movement and seals stay exactly as the factory left them.