Is there a way to confirm Apple Watch activation lock is off?

Hello,

You can also check if it’s been removed from your device list, on your iPhone settings.

First make sure you are connected to WiFi to access iCloud information.

In the SETTINGS app, tap your name/Apple ID badge right at the top. Then scroll down to check the devices listed at the bottom of the page.

If you don’t see the watch there, it means it’s been removed from your devices and Activation Lock is off.

Hope this is helpful,

Vicko.

Yes, see the "Before you buy a watch from a third-party" section in:

What to do before you sell, give away, or trade in your Apple Watch, or buy one from someone else - Apple Support

I can’t see that specific confirmation on Apple’s website, but you could also follow the iCloud.com method outlined below, which would allow you to remove activation lock remotely.

If you don’t see the watch on iCloud.com, activation lock is off.

https://support.apple.com/en-us/HT201441

If the previous owner isn't with you

If the previous owner isn't present, contact them and ask them to follow these steps:

1. Sign in to iCloud.com with their Apple ID.
2. Go to Find My iPhone.
3. Click All Devices at the top of the screen.
4. Select the device that you want to remove from iCloud.
5. Click Erase [device]. Select Next until the device is erased. 
6. Click Remove from Account.

After the previous owner removes the device from their account, turn off the device and then turn it back on to begin the setup process.

Hope this helps,

Vicko

😎👍