The album was produced by Sean O'Hagan and features guest appearances by former member Bill Ryder-Jones, Cilian Murphy, John Simm and Love guitarist Johnny Echols.

Following the critical success of their 2021 double album Coral Island, the band was invited to record at Parr Street Studios in Liverpool for a final time before it was sold.

[3] The Coral thought of Sea of Mirrors as a "kind of imaginary soundtrack to a 'lost' Spaghetti Western", citing the late composer Ennio Morricone as a main influence.

[6] The second single and closing track of the album, "Oceans Apart", was released on 29 June, featuring a vocal cameo by actor Cilian Murphy, who is also fan of the band.

[9] Uncut wrote that it "confirm[s] the band's Merseyside-'67 LA space-time portal, retracing familiar if melodically firm ground".