Manufacturer Bulova (Citizen/Miyota) Caliber Number NP20 Movement Type Quartz Battery Cell SR927W (395) Battery Life Unconfirmed Frequency 262,144 kHz Quartz...
Ultra High Frequency
Manufacturer Zenith Caliber Number El Primero 3620 Base Caliber Zenith El Primero 3600 Vibrations Per Hour 36,000 bph, 5Hz Power...
Manufacturer Bulova (Citizen/Miyota) Caliber Number 8136 Type Quartz Lignes 15”’ Diameter 34.6mm Height 4.9mm Total Height 8.5mm Battery Cell SR927W...