Changing a strap is the cheapest way to make a Seiko feel new. It takes five minutes and one small tool. Here is how to change a Seiko strap without scratching the lugs.
Step 1: know your lug width
| Watch | Lug width |
|---|---|
| SKX007 / SKX009 | 22 mm |
| Seiko 5 Sports SRPD | 22 mm |
| Prospex Turtle SRPE93 | 22 mm |
| Vintage 6309 / 7002 | 22 mm |
| 6139 ‘Pogue’ | 19 mm |
| Lord Marvel 5740 | 19 mm |
Not listed? Look it up in our free Strap Size Finder, which also suggests strap types for how you wear it.
Step 2: get the right tool
A spring bar tool costs very little. The forked end goes between strap and lug to push the spring bar in. The pin end is for bracelets with drilled lug holes.
Step 3: protect the case
Lay the watch face down on a soft cloth. Put a strip of painter’s tape on the underside of each lug, as close to the edge as possible. This is the trick that stops the tool from leaving marks.
Step 4: remove the old strap
- Slide the forked end of the tool between the strap and the lug.
- Push the spring bar in until its tip leaves the lug hole.
- Lift that side of the strap out, then do the other side.
- Keep the spring bars if they are in good shape; you may need them.
Step 5: fit the new strap
- Put the spring bar through the strap.
- Seat one tip of the bar in its lug hole.
- Compress the other tip with the tool, slide it into place and let go.
- Tug the strap firmly. It should not move.
- Check the buckle end is at 12 o’clock.
Quick-release straps are even easier: pull the small lever on the back of the strap, fit, and listen for the click.
Which strap to choose
| Strap | Best for |
|---|---|
| Rubber or FKM | Swimming and hot weather |
| NATO or nylon | Casual wear, cheap to swap |
| Leather | Dress and vintage watches; keep it dry |
| Steel bracelet | Daily wear, durable |
Planning a gift? Our watch gift finder suggests watches by budget and style.
Frequently asked questions
What size strap does my Seiko take?
Measure the gap between the lugs. The SKX007, Turtle and Seiko 5 Sports take 22 mm; the 6139 ‘Pogue’ takes 19 mm. Our Strap Size Finder lists 40 models.
Can I use a screwdriver instead of a spring bar tool?
It is not recommended. WatchObsession advises heavily against it because it is easy to slip and scratch the case.
Why will my new strap not click in?
Make sure the spring bar is the right length for the lug width, and gently wiggle the bar into the hole rather than forcing it.
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