| Reference Ocarat | #100534 |
| Reference | HD7 “Tachymètre” Orange |
| Brand | Humbert-Droz |
| Product Type | Watch |
| Gender | Men |
| Color | Black Gray Orange |
| Material | Steel |
| Material Quality | 316L stainless steel |
| Finish | Black PVD Matte (Brushed / Satin) |
| Warranty | 2 Years |
| Thickness (in mm) | 15,30 |
| Diameter (in mm) | 47,00 |
| Labels and Certificates | Authorized Retailer Limited Edition |
| Case Shape | Cushion |
| Dial Finish | Carbon Case Back |
| Watch Case Back | Exhibition Case Back Screwed caseback |
| Glass Quality | Mineral Crystal |
| Watch Case Types | Date |
| Buttons | 1 Crown 2 Pushers |
| Screw Crown | Yes |
| Water Resistance (in ATM) | 5 |
| Frequency | 28,800 A/h (4 Hz) |
| Movements | Automatic (rotor) |
| Movement Type | Swiss Movement |
| Movement Brand | ETA Valjoux |
| Calibers (Movements) | ETA 7753 (Valjoux) |
| Calendar and Time | Dates Hours Minutes Seconds |
| Chronograph Function | Yes |
| Counters and Durations | 12h 30 min Small seconds |
| Timekeeping and Measurement | Chronograph |
| Power Reserve (Maximum Duration) | 48 hours |
| Navigation and Instruments | Tachymeter (instrument that measures the speed of a moving object) |
| Display Type | Analog (hands) |
| Display Specifications | Indices and railroad track Luminescent hands and indexes |
| Number of Counters (Additional) | 3 |
| Bracelet Material | Calfskin |
| 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 |
With a passion for watchmaking spanning generations, Humbert-Droz crafts timepieces that blend technical mastery with refined elegance. Handed down from one generation to the next, the brand consistently delivers innovative designs across its collections. Meet the HD7 "Tachymeter" Orange, designed for men. It features a cushion case in 316L stainless steel with a black PVD treatment. Measuring 47 mm in diameter and 15.30 mm thick, its surface is decorated with 4 screws on either side. The dial is protected by a mineral crystal, and the watch's functions can be operated via the black screwed crown and the two pushers on the right side. A screwed caseback ensures 5 ATM water resistance and features a transparent window offering an admirable view of part of the movement.
This dial is designed for effortless timekeeping. Its bezel features a tachymeter scale opening with an orange arc, allowing you to measure speeds. With a sunray finish and orange hands, three sub-dials tracking 30 minutes, 12 hours, and small seconds are positioned at 3, 6, and 9 o'clock to deliver the chronograph function - ideal for your athletic pursuits. Beneath them sit 3 hands in polished steel, including a fine orange seconds hand and two silver sword-shaped hands indicating the hours and minutes respectively. They point to a minute track interspersed with baton indices in grey. Distinct yet complementary, these time markers feature a luminescent treatment for smooth readability in the dark. At 4 o'clock, a date window is set, followed by the inscription " Assembled in France " near 6 o'clock. Finally, the dial closes with the brand name and movement type near 12 o'clock on a black carbon-patterned background.
This timepiece is powered by an automatic ETA 7753 movement. Swiss-made, it guarantees outstanding reliability and flawless performance. It features 27 jewels and beats at a frequency of 28,800 BPH, delivering a power reserve of 48 hours.
The strap accompanying this timepiece will elevate your wrist for any occasion. Crafted in black Cordura leather, it is finished with striking orange contrast stitching. Its black hue pairs seamlessly with both day and night looks, gracefully following the contours of your wrist. A deployant clasp lets you adjust it easily to your preferred fit. The lug width is 24 mm, and a spring bar tool is included so you can swap the strap with ease.
This model offers a water resistance of 5 atmospheres, or 50 m. Designed to be as beautiful as it is bold, it handles everyday wear with ease. You can keep it on in the shower - though the Ocarat team recommends leaving it on the edge of the sink to preserve its brilliance and integrity over time. As for swimming and scuba diving, we strongly advise against wearing this watch in those conditions to avoid damage and costly repairs.




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HD7 "Tachymeter" Orange Watch
(Ref. 100534)