03 BUYING NOTES
Check which replacement watch straps fit
Check the space between the two lugs where the strap meets the watch case. For straps that attach between the lugs, that width is one of the measurements you need.
Ask for a photo of the connection and confirm the exact watch model. A model-specific quick-change system can require a compatible strap even if another strap has the same width.
Seiko example of a quick-change watch strap