This might be out of scope, but citizen makes the W770, I recently bought one for <200US lightly used. It manages to be a pretty good chronograph , BLE with an alarm and vibration motor (with a somewhat neglected strange little ecosystem of scriptable notifications).

As a watch, it does require that you read the manual completely to understand its various interface paradigms, but it’s reasonable given that there is no display per se, only hands, to show all of the information. Also, you may need to synchronize the hands at first setup, that baffled me at first lol.

It’s efficiently solar powered using a super capacitor, with months of battery life if left in the dark, no battery concerns at all if you wear it (unless maybe you are an actual vampire that also cannot tolerate artificial light)

The supercapacitor can be replaced if it wears out, seems to be reliable for about 15-20 years based on their other watches.

I like mine quite a lot, it’s a well built actual timepiece, put it on and forget about it if you want. It doesn’t ask you to do anything for it to just do its job, year after year.

Citizen may have other options as well with BLE, idk.

Id love to see someone reverse engineer the notification / BLE communication protocol and create an open source companion app - the possibilities for hacker-y types would be pretty cool.