ETA Caliber 2523Manufacturer ETA Caliber Number 2523 Diameter 13”’ (28mm) Thickness 4.5mm Vibrations Per Hour 18,000 bph Power Reserve ~43 hours Jewels...Automatic 015
ETA Caliber 256.041Manufacturer ETA Caliber Number 256.041 Lignes 8 1/4”’ Diameter 18.2mm Height 1.95mm thick Battery Cell Number 315 Jewels 6 Frequency...Quartz 610
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