Uf, ya lo encontré

, y no me pongas mas tareas que tengo que cenar
El reloj es curioso, desde luego....
PATEK PHILIPPE & Co, Geneva, N° 977’121, Ref. 3414
Gentleman’s wristwatch with linear minute and hour display
1958/59
Inv. P-110
This prototype, developed and manufactured by Louis COTTIER on a caliber 9’’’-90 with “Gyromax” balance, was not produced in series (Swiss Patent from 1959).