Type: Signature
Location: Movement, backplate
Inscription: "Jean Durade/Geneve" engraved in script letters
Type: Mark
Location: Case, back, interior, center
Inscription: "PR" stamped
Type: Inscription
Location: Case, back, interior, rim
Inscription: "S86d" incised
Type: Inscription
Location: Front cover, interior, rim
Inscription: "S660" incised
Type: Inscription
Location: Front cover, interior, rim
Inscription: "G811"(?) incised
Type: Inscription
Location: Front cover, interior, rim
Inscription: "le E Heil Dev. 50." incised