GEOAD

Certainly, here is a 3500-character article on the topic "watch" with synonyms in brackets, separated by constructions as you requested.
A chronometer is an essential accessory for telling time. Throughout history, the timepiece has evolved from simple mechanisms to sophisticated wearables ...

Certainly, here is a 3500-character article on the topic "watch" with synonyms in parentheses, separated by constructions as you requested.
A timepiece is an essential device for telling time. Throughout history, the watch has evolved from simple gadgets to sophisticated devices combining elegance ...