Panerai Submersible Carbotech Category_Default category/Our Boutique/Montblanc/Timepieces The calibre has two barrels

The calibre has two barrels which store enough energy for 72 hours of power reserve

The centre of the dial is created using a special stamp that reproduces this glacier texture and celebrates the "blue hour" - "l'heure bleue"

and has a power reserve of approximately 38 hours

the Montblanc 1858 Geosphere Limited Edition 1858 honours the heroes of mountain climbing with an innovative

Panerai Submersible Carbotech Category_Default category/Our Boutique/Montblanc/Timepieces The calibre has two barrelsSolid and strong, with unrivalled visibility even at great depths and a uniquely distinctive appearance: Submersible watches are professional divers watches presenting innovative technical solutions