| Reference Ocarat | #100523 |
| Reference | HD1 «Acier» |
| Brand | Humbert-Droz |
| Product Type | Watch |
| Gender | Men |
| Color | Black Gray |
| Material | Steel |
| Material Quality | 316L stainless steel |
| Finish | Black PVD Matte (Brushed / Satin) |
| Warranty | 2 Years |
| Thickness (in mm) | 13,50 |
| Diameter (in mm) | 43,00 |
| Manufacturing | France |
| Labels and Certificates | Authorized Retailer Limited Edition |
| Case Shape | Cushion |
| Dial Finish | Open heart Soleillée |
| Watch Case Back | Exhibition Case Back Screwed caseback |
| Glass Quality | Mineral Crystal |
| Buttons | 1 Crown |
| Screw Crown | Yes |
| Water Resistance (in ATM) | 10 |
| Frequency | 28,800 A/h (4 Hz) |
| Movements | Automatic (rotor) |
| Movement Type | Swiss Movement |
| Movement Brand | ETA |
| Calibers (Movements) | ETA 2824 |
| Calendar and Time | Hours Minutes Seconds |
| Power Reserve (Maximum Duration) | 38 hours |
| Display Type | Analog (hands) |
| Display Specifications | Arabic Numerals Indices and railroad track Luminescent Hands |
| Bracelet Material | Bovine leather |
| Strap Color | Black |
| Bracelet Material Finish | Carbon-pattern leather |
| Topstitching | Yes |
| Watch Clasp | Deployment Clasp |
| Lug Width (in mm) | 24,00 |
| Limited Edition (Collector) | Yes |
Humbert-Droz is a brand founded in 1956 that embodies watchmaking excellence. It crafts meticulous timepieces built by a passionate and experienced team. To grace men's wrists, the brand unveils the new HD1 "Acier" - a limited edition of just 200 pieces - featuring a cushion-shaped case. Crafted in 316L stainless steel with a brushed finish, its surface is screwed and treated with black PVD. Measuring 43 mm in diameter and 13.50 mm thick, the dial is protected by a mineral crystal, and a crown guard on the right side conceals a black screw-down crown for setting the hours and minutes. The screw-down caseback offers a beautiful view of the movement through a transparent window and ensures a water resistance of 10 ATM.
Particular attention has been paid to this dial. It features a silver-toned base with a sunray finish that gives it an elegant, understated, refined look. Its black graduated bezel, marked every 10 units with Arabic numerals, frames a minute railroad track in the same hue. The central circle showcases baton indices and Arabic numerals at 3, 6, and 9 o'clock marking the hours. The open heart that defines this collection sits proudly just below 12 o'clock for added charm. Hours and minutes are indicated by two satin sword-shaped hands in black, enhanced with a Luminova treatment for around-the-clock legibility. The slender seconds hand features an arrow-tipped end and the same luminescent treatment. The brand's name is elegantly inscribed below 6 o'clock alongside the word "automatic," a nod to the movement type.
This model is powered by a Swiss movement assembled in France - specifically the ETA 2824 caliber, boasting an oscillation frequency of 28,800 BPH and 25 jewels. It delivers precise timekeeping and reliable performance across the hour, minute, and second hands, with a power reserve of 38 hours.
The brand pairs this timepiece with a strap in black carbon-embossed bovine leather. Sleek and versatile, it elevates any outfit with effortless elegance. With a lug width of 24 mm and a deployant clasp, note that the watch comes with a removal tool to make strap changes easy.
This model offers a water resistance of 10 atmospheres, or 100 meters. We're talking about a genuinely water-resistant watch! This stylish timepiece is ready to dive into aquatic adventures with you. From puddles to the pool, it handles water exposure without complaint - shower, bath, and recreational swimming are no problem. That said, Ocarat's watchmaking experts want you to know that while this model is water-resistant, it is not designed for diving (professional or recreational) and should be kept away from high-pressure cleaning equipment. We also recommend keeping the crown and pushers dry during immersion.





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HD1 "Acier" Watch
(Ref. 100523)