Can I use my Apple watch without being located?
If you have location sharing on on your paired phone and you use the Apple watch to make a call away from the phone, does that make it automatically locatable?
Apple Watch
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No. Location is shared from the selected device only. Making a call does not change your location. Unless you are actually sharing the location from the Watch, it will not be seen by anyone whether you make a call or not.
See here: Share locations in Find My on your iPhone and other devices - Apple Support