
Micro-rotor movement
The Quantra is powered by a micro-rotor automatic movement. Its transparent caseback and the positioning of the oscillating weight at the same level as the other components reveal the inner workings of the watch, offering a captivating view of the gears in motion. The micro-rotor movement is internally regulated to +/- 7 seconds and features blue screws and a custom ALCADUS rotor.
Caliber Hangzhou Automatic Micro-Rotor 5015A
Diameter 13 1/4″ (30.0 mm)
Height 3.95 mm
Winding, bidirectional automatic winding, manual winding
Small seconds (without hacking)
34 Jewels
Frequency 28,800 A/h (4 Hz)
Power reserve >= 42 hours
Precision +/- 7 seconds/day (internally regulated)
Decorated Geneva stripes and blue screws
Unique Case Profile
The 36mm stainless steel case features a highly polished bezel, a vertically brushed finish on the horns and a sandblasted finish on the CNC machined recessed central part.
A polished conical chamfer along the The horn shoulder adds a touch of sophistication to this watch.
The watch case also features an 800 HV anti-scratch coating and an anti-fingerprint coating to preserve the pristine beauty of your watch.
Sapphire crystal
A symbol of distinction for all ALCADUS models, the Quantra proudly displays box-shaped glasses which protrude from the edge of the case, a notable improvement over the once widespread and scratch-prone plexiglass (acrylic glass).
Remarkably strong, with a hardness of 2200-2300 HV, the sapphire crystals that adorn our watches are virtually unbreakable, surpassing diamond in terms of durability and scratch resistance.
In addition, our sapphire crystal undergoes a meticulous process, receiving five layers of anti-reflective treatment on its inner side for optimal clarity and readability. This careful treatment ensures optimal visibility without compromising its integrity, as applying the treatment to both sides can cause scratches.
Luxurious French leather bracelets
The leather strap, often overlooked by many brands, is a crucial detail for ALCADUS. An essential piece of the puzzle, it embodies craftsmanship, durability, tradition, comfort, and quality.
To meet these criteria, we use leathers from Tanneries Haas (owned by the Chanel group) in France, a supplier to major luxury brands. Tanneries Haas, in France, has been tanning leather since 1842 and is renowned for its high-quality leathers.
Handcrafted with care
Each of our watch straps is meticulously handcrafted using traditional leatherworking techniques. Each strap is cut, saddle-stitched, and burnished by hand, ensuring longevity and making your strap a timeless accessory designed to last a lifetime.
The interior lining is made of smooth Zermatt leather from Tanneries HAAS in France, the same type of lining commonly found in Hermès bags.
Case material:
316L stainless steel with anti-scratch and anti-fingerprint coating
Case dimensions:
36 mm
Between the horns:
44 mm
Thickness :
10.5 mm (including crystal)
Horn width:
20 mm
Glass :
Sapphire crystal (with 5 layers of clear AR coating inside)
Movement :
Hangzhou decorated automatic caliber 5015A (regulated)
Power reserve:
42 hours
Crown :
Push-Pull
Waterproofing:
50 meters / 5 ATM / 160 feet
Straps included:
1 x luxurious French leather straps by Tanneries Haas
