Watchman has been played on NTS shows including Rhythm Connection, with Watchman's Theme first played on 1 September 2022.

WATCHMAN is the solo project of 大島昌樹 (oshima masaki) (The Sleepwalk, Sadesper Record, ex.MELT-BANANA, and support member of COALTAR OF THE DEEPERS). He has also contributed to soundtracks for video games and anime. His OHP is located here.