Bvlgari Octo Finissimo Perpetual Calendar
It all began back in 2016 when Bvlgari released the record breaking “Octo Finissimo Minute Repeater with a 3.12mm movement, followed by the 2017 “Octo Finissimo Automatic” (2.23mm movement), the 2018 “Octo Finissimo Tourbillon Automatic” (1.95mm), the 2019 “Octo Finissimo Chronograph GMT” (3.30mm) and the 2020 “Octo Finissimo Tourbillon Chronograph Skeleton Autoamtic” (3.50mm); each establishing records within its category. Now in 2021 they’ve done it again with the “Bvlgari Octo Finissimo Perpetual Calendar” packing a 2.75mm in-house caliber movement.
The iconic octagonal 40mm case is available in a sandblasted titanium or platinum version, but the most impressive detail is the aforementioned record-breaking thickness of only 5.80mm.
Although besides the thinness there is still a lot to marvel at aesthetically. Bvlgari refers to its approach as L’Estetica della Meccanica, which aims at achieving the best mix of mechanics and stylish craftsmanship. 
A design reminiscent of architectural motifs of Ancient Rome, while also appealing to modern users. Not the easiest goal, but this Octo timepiece is a successful case study in those regards.On the flip-side we encounter a sapphire exhibition case back, which allows us to view the inner workings of this complicated mechanical movement. Despite its small footprint this new record breaking Bvlgari movement has packed: hours, minutes, a retrograde date, day, month, and retrograde leap year functions; all in a total thickness of just 2.75mm. 
It also comes equipped with a setting-crown, plus very discreet recessed buttons on the side of the case used to adjust the calendar functions: date (at 2 o’clock), the month (at 4 o’clock) and day of the week (at 8 o’clock).
All topped by a sapphire crystal that assists with water-resistance reaching up to 30 meters (96 feet).
Time is exhibited on a sandblasted titanium dial (matching its case alloy) or a blue lacquer dial (on the platinum version). 
After packing all those complications into the movement, Bvlgari had to match their ingenuity dial-wise. 
It features two retrograde indications for the date and the leap years. On the upper half of the dial we encounter the date printed in a black semi-circle that includes the whole range of 31 numerals. Once the hand reaches the last day of the month, it automatically jumps counter-clockwise and returns to its initial day one position.
On the lower half Bvlgari has spread out three distinct complications. The day of the week sub-dial is on the left, while the months are on the right side. A small leap year indicator has been placed at the 6 o’clock position. 
As for telling current time we can follow the black skeletonized central hands, which point out the black baton style hour index markers. These markings start off with a quite prominent size on the upper half of the dial, but decrease almost completely out of view as we enter the more “crowded” lower half of the dial.
Bvlgari Octo Finissimo Perpetual Calendar
The “Bvlgari Octo Finissimo Perpetual Calendar” (References below) is powered by the in-house self-winding mechanical movement, calibre BVL 305 with 35 jewels, 408 components, and 21,600 vph. It comes equipped with an automatic integrated perpetual calendar with a micro-rotor. Power reserve on this watch can last up to 60 hours, when fully wound.
Mounted on these watches is either a sandblasted titanium bracelet with folding clasp (titanium model) 
or a blue alligator leather strap with pin buckle (platinum model). For more up to date information visit the official Bvlgari website here.
(Ref#: 103200) * Titanium
(Ref#: 103463) * Platinum
