Technology

HHC (Haldor Hard Coating)

HHC is a special hardening process designed to increase the scratch resistance and hardness of steel. It can also be applied to titanium. This process creates a hardened barrier approximately 25 microns deep on the outer layer of the metal, making it significantly harder. With this method, we can achieve a hardness of approximately 2000HV (Vickers hardness) for stainless steel, which is seven times harder than regular stainless steel. The hardening process is applied before the steel cools, forming a protective layer on the surface. Thanks to this technology, the watch’s exterior becomes substantially more resistant to scratches.

DLC (Diamond-Like Carbon Coating)

DLC is a nanocomposite coating with the unique properties of natural diamond, including low friction, high hardness, and superior corrosion resistance. DLC coatings can have different structures and properties depending on the ratio of diamond and carbon, as well as other fillers like hydrogen, silicon, or metal. After the DLC process, the metal changes color to black. The hardness of DLC-coated steel is approximately 1000–1200HV. Haldor can also apply DLC over HHC, creating an ultra-hard metal that can reach up to 3500HV.

MAGNETIC FIELD PROTECTION

To protect watches from magnetic fields, we integrate a light metal cage inside the watch case along with other modifications. This ensures that the watch movement remains protected up to 4,800 A/m (Ampere per meter).

MOVEMENTS

We use only Swiss-Made automatic movements produced by ETA SA Manufacture Horlogère Suisse and Sellita SA. Before assembly, we test and calibrate the mechanical movements using the latest Witschi Electronics equipment. Haldor watches are equipped with the following mechanical movements:

  • ETA 2824-2 / Sellita SW200-1

  • ETA 2892A2 / Sellita SW300-1

  • ETA 7750 / Sellita SW500

METAL BY HALDOR

Stainless Steel 316L (Marine Grade)

Also known as marine-grade stainless steel, Type 316L offers improved weldability and reduces the risk of corrosion in welded areas. Compared to standard carbon mild steel, 316L offers:
✔ Higher corrosion resistance
✔ Higher cryogenic toughness
✔ Higher work-hardening rate
✔ Higher hot strength
✔ Higher ductility
✔ Higher strength and hardness
✔ More attractive appearance
✔ Lower maintenance requirements

Titanium Grade 2

Titanium Grade 2 is an unalloyed titanium known for its moderate strength and excellent cold-forming properties. It provides superior welding properties and exceptional oxidation and corrosion resistance. In the watch industry, it is the most widely used titanium due to its balance of strength, weight, and affordability. The hardness of Titanium Grade 2 is approximately 200HV (Vickers hardness).

Titanium Grade 5 (Ti-6Al-4V)

Titanium Grade 5 is the most commonly used titanium alloy. Its chemical composition consists of:
✔ 6% aluminum
✔ 4% vanadium
✔ 0.25% max iron
✔ 0.2% max oxygen
✔ The remainder is titanium
This alloy is significantly stronger than Grade 2 titanium and offers an excellent combination of strength, corrosion resistance, high heat resistance, and weldability. Titanium Grade 5 has a hardness of approximately 350HV (Vickers hardness). Due to its high cost (three times more expensive than Titanium Grade 2), it is used primarily by high-end watch brands.

CuSn8 Bronze

CuSn8 is a high-grade bronze alloy made of 92% copper and 8% tin. This material is well-known for its excellent strength, corrosion resistance, and wear resistance. Over time, CuSn8 develops a natural patina, which enhances its appearance and protects it from further oxidation. Due to its unique aging process, each watch case develops an individual look, making every piece unique. CuSn8 bronze is often used in marine applications due to its resistance to saltwater corrosion.

Carbon

Carbon fiber is a lightweight and extremely strong material widely used in high-performance industries such as aerospace, automotive racing, and luxury watchmaking. It offers a high strength-to-weight ratio, excellent shock resistance, and thermal stability. Carbon fiber watch cases are highly durable and have a distinctive, modern aesthetic with a unique woven pattern. This material is perfect for those looking for a watch that combines high performance with a sleek design.

SAPPHIRE CRYSTAL

All Haldor watches are fitted with sapphire crystal, which is produced by heating crystal powder to over 2000°C. The sapphire is precisely cut from a polished slice of solid sapphire and then polished for hours to achieve the perfect finish. Sapphire crystal is the hardest transparent material on Earth after diamond—it is so hard that only a diamond can scratch it.