Looks like the crank is a Campa Record copy made by Ofmega
Rohrsatz / tubeset: Reynolds 531c
Crank arms are diffrent production years (1973 / 1975)
Rohrsatz / tubeset: frame: Diamant All-Round
Alesa clincher rims with Shimnao Santé #HB-5000/FH-5000 7-speed Uniglide hub Set from the 1980s
Rene Roosens Record Frame 57,0 cm (c-t) 55,5 (c-c) Reynolds 531 gazelle Looks like the crank isSattelrohr seat tube: 57,0 cm (Mitte Oberkante center top) Sattelrohr seat tube 55,5 cm (Mitte Mitte center center) Oberrohr top tube: 55,0 cm (Mitte Mitte center center) Steuerrohr head tube: 13,5 cm Gabelschaft fork shaft: 18,0 cm Einbaubreite vorne front spacing: 100 mm Einbaubreite hinten rear spacing: 126 mm Sattelsttze seat post: 27,0 mm Innenlager bottom bracket: FRA (68mm) Rohrsatz tubeset: frame: Reynolds 531, fork: Ausfallenden dropouts: