Quantra Guilloché MOP – Iris (Pre-Order)

US$815.00

Includes the 5-link steel bracelet and a premium leather strap of your choice.

*Choose your leather strap
Select the leather strap included with your watch. The 5-link bracelet is included with every order.
Optional Extras
Optional add-ons to complete your set.
Black Epsom Leather Strap

Dark Grey Epsom Leather Strap

Beige Epsom Leather Strap

Grey Nubuck Strap

Dark Brown Nubuck Strap

Additional 5-Link Bracelet (fit all Quantra models)
Import duties & VAT
We collect 15% of your order value upfront to cover import duties and VAT. Skip customs hold-ups.
Delivery Duty Paid (DDP)

Estimated shipping in Oct 2026

Collector pricing is applied automatically on multi-watch Gemstone, Guilloché MOP, and Voyager GMT pre-orders during this allocation period.

48 Months Worry-Free Guarantee
30 days Returns / Exchanges
Free Worldwide Shipping

The Guilloché MOP Series

We took natural Mother-of-Pearl and combined its organic iridescence with a technical, high-precision finish to catch the light from every single angle.

Engineering Character: The Off-Center Pattern

Unlike traditional guilloché that radiates from the center of the dials, we’ve designed these patterns to be off-centered. The focal point of the design begins at the small seconds sub-dial at the 9 o’clock position.

To achieve this level of geometric complexity and crispness on such a delicate material, the patterns are precisely CNC-machined. This modern approach allows us to create deep, sharp ridges that catch the light in ways a traditional rose engine cannot, giving the dial a unique, modern-vintage character that shifts with every movement of your wrist.

Iris MOP

Named after the Greek goddess of the rainbow, the Iris Mother-of-Pearl is a chromatic shapeshifter. We’ve applied a specialized bluish tint to the natural shell, which creates a mesmerizing play of color. In direct light, the dial captures a pale blue, but as you tilt your wrist, the CNC-machined ridges catch the light to reveal deep, electric purple flashes radiating from the 9 o’clock small seconds sub-dial. It is a vibrant, ethereal choice for those who want a watch that feels truly “alive.”

Micro-Rotor Movement

The Quantra operates on an automatic movement featuring a micro-rotor. Its transparent case back and the positioning of the oscillating weight at the same level as other components unveil the watch’s inner workings, providing a captivating view of the gears in motion. The micro-rotor movement is regulated in-house to +/- 7 seconds and upgraded with blue screws and custom ALCADUS rotor.

Calibre Hangzhou Micro-Rotor Automatic 5100A
Diameter 13 1/4″ (30.0 mm)
Height 3.95 mm
Winding, bi-directional automatic winding, manual winding
34 Jewels
Frequency 28,800 A/h (4 Hz)
Power reserve >= 42 hours
Accuracy +/- 7 seconds / day (regulated in-house)
Decorated with Geneva stripes and blue screws

Unique Case Profile

The 36mm stainless steel case features a highly polished bezel, vertically brushed finish on the lugs, and sandblasted finish on the CNC-machined recessed center portion.

A polished tapered chamfer along the lug shoulder adds a touch of sophistication to this watch.

A hallmark of distinction across all ALCADUS models, the Quantra proudly boasts box-shaped crystals that extend beyond the case edge, a notable enhancement over the previously prevalent plexiglass (acrylic glass) susceptible to scratches.

Moreover, our sapphire crystal undergoes a meticulous process, receiving 5 layers of Anti-Reflective coating on its inner side to enhance clarity and legibility. This thoughtful treatment ensures optimal visibility without compromising its integrity, as applying the coating to both sides can risk scratching.

The watch case also features a 800 HV scratch-resistant coating and an anti-finger print coating to preserve the pristine beauty of your timepiece.

Luxurious French Leather Straps

The leather strap, often overlooked by many brands, is a crucial detail for ALCADUS. It’s an essential part of the puzzle, embodying craftsmanship, durability, tradition, comfort, and quality.

To meet these criteria, we use Epsom leathers from Tanneries Haas (owned by the Chanel group) in France, which is the supplier to major luxury brands. Tanneries Haas in France has been tanning leather since 1842 and is famous for their premium leathers.

Meticulously Handcrafted

Every single one of our watch straps is meticulously crafted by hand, employing traditional leathercraft techniques. Each strap is cut, saddle-stitched and burnished by hand, guaranteeing longevity and ensuring that your strap is a timeless piece built to last a lifetime.

The inner lining is made from smooth Zermatt leather from Tanneries HAAS in France, the same type of lining commonly found in Hermès bags.

Comes with a 16mm high polished buckle.

The Quantra also pairs well with our signature Italy Nubuck Leather Strap

The ALCADUS GUARANTEE

Each ALCADUS watch is a testament to meticulous hand finishing and assembly. We are confident you’ll fall in love with our watches; however, if you find yourself less than 100% satisfied within 30 days of purchase, simply return them in their original, unworn condition for a full, no-quibble refund or exchange.

We understand the desire to preserve the pristine beauty of your timepiece, which is why every ALCADUS watch features a special 800 HV scratch-resistant coating.

Adding an extra layer of assurance, we proudly present our industry-first 4-year Worry-Free Guarantee. Beyond covering mechanical faults of the watch movement, this comprehensive guarantee offers a 1 (one) time complimentary watch case replacement for any damage (within 48-month warranty period)—whether from daily wear or an unexpected accident—ensuring your complete peace of mind. This covers any form of mechanical fault of the movement and we will arrange a repair free of charge.

More details can be found here.