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Versatilely sized at 39mm. Sapphire crystal lens. Swiss automatic movement. Swiss Super-LumiNova® luminescent on hands, dial and watch crown. 10 ATM WR. And drilled lug holes. The OPUS is everything you love about an elegant and understated timepiece.

The Design

Inspired by Aviation Cockpit Instruments

The OPUS collection is heavily inspired by the cockpit instrument designs and the pilot / flieger watch design. The dial design is reduced to bare essentials, with superior luminescent for legibility at low light condition.

In a traditional flieger watch, the triangular index at 12 O’clock position allows the pilots to quickly determine the upward orientation of the watch in the dark. The OPUS 39 substitute the traditional triangular index with the ALCADUS logo.

The seconds hands design also incorporates the ALCADUS logo in a subtle way. The traditional pilot watches had big onion / diamond-shaped watch crown that were designed for pilot wearing thick gloves and flight suit. The OPUS 39 took the cue when the custom watch crown is designed.

The Collection

Discover the three debut models


Watch Case

The finishing and details

Molded from marine grade 316L Stainless Steel, the 39mm OPUS is coated with a high tech scratch-resistant coating with a hardness of 800 HV. As a comparison, the uncoated 316L stainless steel has a hardness ~200 HV, which can be easily scratched on daily usage. This coating makes sure that your watch will look new for many years to come.

Contrasting the circularly brushed lug and horizontally brushed side of the case, the thin polished bezel bring alluring focus to the box-shaped sapphire crystal and the watch dial.

The OPUS 39 comes with several options of premium straps and bracelet with Quick-Release mechanism for easy strap changing. With the drilled lug holes on the watch case, you can easily change to other straps of your choice with minimal risk of scratching your watch.

The OPUS has a water resistance rating of 100m / 333ft / 10ATM, as opposed to 30m water resistance rating found on most pilot watches. OPUS is designed to be an all-rounder dressy tool watch you can wear in many occasions.

Box Sapphire Crystal

with 5X inner AR coating

Inspired by vintage watches of yesteryear, the OPUS features a box-shaped crystal which sticks out beyond the case edge/bezel. The box-shaped lens of vintage watches were mostly made of plexiglass (acrylic glass) and could be easily scratched.

Sapphire crystal has an extraordinary hardness, which can only be rivaled by diamond. Known of its excellent scratch-resistant qualities, OPUS utilized sapphire crystal for its box-shaped lens.

Box-shaped sapphire crystal is rarely found in watches less US$2000 – 3000 because of the steep manufacturing cost and the technology involved. A box-shaped sapphire crystal can cost up to 8-10 times more than a flat / domed sapphire crystal. The box type sapphire crystal also offers better shielding to reduce accidental scratching of the stainless steel watch case during your daily usage.

Flipping the watch over, a flat sapphire crystal can be found on the display caseback, offering an interesting perspective on the automatic Swiss ETA 2892-A2 movement.

5 layers of high quality clear anti-reflective (AR) coating is applied on the inside / underside of the top lens to prevent unwanted glare. Some watches do offer AR coating on both the inner and outer side. Although it can improve the clarity, but the outside AR coating can be easily scratched and could be an unpleasant sight, thus OPUS only features inner AR coating.

ETA 2892-A2

Premium Swiss Movement Inside

The OPUS is powered by the premium Swiss-made ETA 2892-A2 movement. Beating with a cadence of 28,800 vibrations per hour (4 Hz) and finished with 21 jewels, the ETA 2892-A2 movement is found in many luxury brands as the movement for their high-end timepiece:


Modified ETA 2892-A2:

Modified ETA 2892-A2 with chronograph module:

Movement Specification

Self-winding mechanism (automatic)

Power Reserve
42 Hours

Jewel Count

28,800 bph (4 Hz)

Shock System

Daily rate: +/-5 sec/day
Positional error: +/-20 sec/day.

Hours, Minutes, Seconds (Hacking), Date

Elegance Meets Versatility

The All-Rounder Dressy Tool Watch

The OPUS is thoughtfully designed and crafted to be a versatile dressy tool / field watch that is simple, durable and legible. Whether you are scaling a snow-topped mountain, exploring the jungle, big expedition to the unknown land or desk-diving in a temperature-controlled environment, OPUS is the timepiece that is made to be worn and enjoyed.

Carpe diem.


Technical Specification

316L Stainless Steel with scratch-resistant coating, brushed finish with polished bezel

Jet Black – Black Lacquered Finish (Glossy), Phantom Grey – Full-lumed (Matte), Argent White – White Lacquered Finish (Glossy)

Sword style hours hand, baton style minutes hand and custom seconds hand with ALCADUS Logo. All covered in a photo-luminescent coating except the Grey full-lumed dial version. Flame-blued hands on white dial version.

Swiss Super-LumiNova® on dial, hands and crown

ETA 2892-A2 with customized skeletonized rotor

Box sapphire on top (with 5 layers of clear AR coating), flat sapphire on display see-through caseback

Strap Options
Stainless steel bracelet, Premium Italian Leather strap and Integrated Rubber Strap*

Water Resistance
100 meters / 10 ATM / 333 ft

39 x 45.5mm

13mm (including 2mm thick box sapphire crystal)

Lug width
20mm (with drilled lug holes)

Screw-down, engraved ALCADUS logo with Luminescent applied

2 + 1 years

*Kickstarter stretched goal

Project: OPUS

Timeline for the ALCADUS Debut Model