Manufacturer ETA Caliber Number 2523 Diameter 13”’ (28mm) Thickness 4.5mm Vibrations Per Hour 18,000 bph Power Reserve ~43 hours Jewels...
Vintage ETA
Manufacturer ETA Caliber Number 256.041 Lignes 8 1/4”’ Diameter 18.2mm Height 1.95mm thick Battery Cell Number 315 Jewels 6 Frequency...