Around this subdial is a simple date display. To complete the calendar, the day and month are shown on two skeletonized disks in the top half of the dial, which turn to show their current values just beneath 12 o’clock. The case middle has four integrated buttons that can be used to correct the calendar. Clockwise from 2 o’clock, they modify the month, moon, date and day.
The Aeromoon movement is HUB 1131, an automatic manufacture caliber. It runs in 25 jewels and vibrates at 28,800 vph. It has 134 components. The power reserve is 42 hours.
The watch comes in titanium or in Hublot’s proprietary King Gold, an alloy combining rose gold and platinum. The faceted baton hands for the hours, minutes and date are plated in rhodium or gold depending on the case version. The seconds hand has the signature Hublot logo as its counterweight.
The Hublot Classic Fusion Aeromoon is the first time that the Nyon-based brand has brought out a traditional moon-phase complication. (Hublot did introduce the Antikythera Sunmoon two years ago, but that watch does not show the moon in the conventional manner.)
The watch has a Classic Fusion case with a 45-mm diameter. The sapphire crystal has a nonreflective coating, as does the transparent caseback. The watch is water-resistant to 50 meters. Its strap is a combination of black alligator sewn onto rubber for greater durability.