Manufacturer Zenith Caliber Number El Primero 3620 Base Caliber Zenith El Primero 3600 Vibrations Per Hour 36,000 bph, 5Hz Power...
Zenith El Primero
Manufacturer Zenith Caliber Number 4000SC Base Caliber Zenith El Primero 400 Vibrations Per Hour 36,000 bph Diameter 13”’ (30mm) Height...
Manufacturer Ebel Caliber Number 134 Base Caliber Zenith El Primero 400 Vibrations Per Hour 36,000 bph Power Reserve 48 hours...
Tag Heuer calibre 36 (Monaco 24) automatic chronograph movement with 31 jewels. 36,000 vph with a 50 hr power reserve. Also a certified chronometer (COSC).