5 month old gray market Pam 90 not keeping time

[Desibaba]

I bought a brand new Pam 90 BNIB from a trusted brick and mortar jeweler on August 31st of 2016. I recently downloaded an App called toolwatch and checked the timing of my 2002 Y serial (probably never serviced) Two tone Bluesy Submariner, New Breitling Super Avenger 2 and my Pam 90. The other two are within COSC specs but the Panerai seems to be off by 50 seconds or so. Now Im wondering if Im not measuring properly because of the small seconds hand in the 9 o clock area of the watch (tried a few times and never within COSC specs). I have the unfilled warranty card and everything that came with the watch including the 3 boxes etc. Can I take it to the local Panerai Boutique and have them check to see if its running within specs?n