Panerai Caliber OP XI

Brand	Panerai
Caliber Number	OP XI
Base Caliber	ETA 6497/2
Movement Type	Manual wind
Jewels	17
Power Reserve	56 hours
Vibrations Per Hour	21,600
Regulator	Swan’s neck
Hairspring	Nivarox I
Shock System	Incabloc
Features	Certified Chronometer, small seconds
Country of Manufacture	Switzerland
Known Models	PAM111 PAM113 PAM177 PAM183 PAM292 PAM127 PAM172 PAM217 PAM118 PAM115 PAM117

The manual wind Panerai caliber OP XI movement is based off an an ETA 6497/2. First seen in Panerai models around 2002. It has 17 jewels with a 56 hour power reserve and 21,600 vph.

This example was found in a PAM 113 but this movement is also used in models listed above.