Erika's Originals MN Strap Sizing & Installation Guide
Find the Correct Fit for Your MN Strap
You'll need two measurements to choose the correct Erika's Originals MN watch strap: the strap width and your wrist size.
Strap Width
Your watch's lug width determines the correct strap width. Lug width is the internal distance between the two lugs where the strap attaches to the watch. A 20mm lug width requires a 20mm strap.
To determine your strap width, try the easy way first: check the back of your current strap for an imprint that indicates the size. If no useful information is provided on the strap, use a metric ruler or caliper to measure the internal distance between the watch lugs. Measure in millimeters.
For more help measuring, see our Strap Width Guide.

Wrist Size
To determine your wrist size, measure your wrist in inches. Use a flexible tape measure or a strip of paper to wrap your wrist where your watch would naturally sit. Mark the point where the two ends meet. If you're using paper, measure it with a ruler. That number is your wrist size.
Erika's Originals offers MN straps for a wide range of wrist sizes. Holben's stocks two sizes that cover the wrist ranges shown below.
Regular: fits wrists approximately 6-1/4"–7-3/4"; equivalent to a strap ordered for a 175mm / 7.00" wrist on Erika's site
Short: fits wrists approximately 5-1/2"–6-3/4"; equivalent to a strap ordered for a 160mm / 6.25" wrist on Erika's site
Changing Your Watch Strap
A spring bar tool makes removing and installing the strap easier and helps reduce the risk of scratching the watch.
Cover your work area with a light-colored towel or cloth to protect the watch and help keep small parts from getting lost. Place the watch face-down on the towel. You can also protect the lugs with masking or painter's tape, taking care not to cover the lug holes.
Remove the Old Strap
Removing the old strap involves a few simple steps.
- Use the forked end of your spring bar tool to expose the shoulder of the spring bar between the strap and the lug, then push the shoulder of the bar away from the lug hole toward the strap.
- Extract the bar from the hole in the lug and remove that side of the strap.
- The opposite side of the strap should fall out of the lug hole on its own. If not, repeat the process on that side.
Sometimes the ends of the spring bars are exposed through holes in the lugs. If this is the case, simply use the pointed end of your spring bar tool to push in one end of the bar until it separates from the lug.
Install Your New MN Strap
To install your new strap:
- Remove the strap piece from the notched metal slider.
- Place the strap over the back of the watch, with the back of the strap facing up. The notched metal slider will be at the twelve o'clock end of the watch.
- Install your spring bars over the back of the strap.

- Insert the strap piece back into the metal slider.
- To fine-tune the fit, slide the metal keeper toward the watch to tighten the strap and away from the watch to loosen it.

If you have questions about sizing or installation, contact us and we would be happy to help.