Physical Vapour Deposition (PVD) is a vacuum process used to apply a very thin coloured or protective coating to metal watch parts. It creates a smooth, durable finish, but it is not scratch-proof and can wear over time, especially on edges and other high-contact areas. Avoid abrasives, chemicals and impacts, and clean the surface with a soft cloth.

A moon-phase complication displays the current phase of the Moon as it waxes and wanes through its cycle. Most watches show it with a rotating disc visible through an opening in the dial. It is a traditional astronomical display and may need occasional correction because the lunar cycle does not divide evenly into calendar days.

Most of our Jowissa watch crystals are made with mineral glass. Think of it like the glass in your windows, but a bit tougher. It can handle everyday wear and tear pretty well and is more scratch resistant than regular plastic.

However, just like anything made of glass, it's not completely scratch-proof. Really hard or sharp things could potentially leave a mark.

For some of our more premium collections, we also use sapphire crystal. Sapphire is very tough! It's much harder than mineral glass and offers even better scratch resistance. You'll usually find this mentioned in the specific watch description if it has a sapphire crystal.

Let's summarize:
Mineral glass (most Jowissa watches): Good scratch resistance for daily use.
Sapphire crystal (some premium models): Excellent scratch resistance, very durable.

To keep your Jowissa Watch looking its best, it's still a good idea to be mindful of bumps and scrapes against hard surfaces.

Mineral crystal, which is used in most Jowissa watches, is a type of glass that's been treated to make it a bit tougher than regular glass. Think of the glass in a smart phone screen – mineral crystal is similar to that.

Because it's treated, mineral crystal is more resistant to scratches than a plain glass window. It can handle everyday wear and tear pretty well, like little bumps and rubs against things.

However, it's not as hard as some other materials, like sapphire crystal. This means that if your watch rubs against something really hard, like certain types of rock or even another piece of glass with a higher hardness, it could potentially get a scratch.

Here's the main idea:
- Mineral crystal is more scratch-resistant than regular glass.
- It can handle most of the little bumps and scrapes you might have during the day.
- However, it's not completely scratch-proof, and harder materials can still scratch it.

So, while your Jowissa watch with a mineral crystal is pretty durable for everyday use, it's still a good idea to be a little careful with it to keep it looking its best!

Yes. Synthetic sapphire crystal is extremely hard and highly resistant to everyday scratches. It is not completely scratch-proof, however: materials of equal or greater hardness, including diamond and some abrasives, can still mark it. Check the product specifications to confirm whether a particular Jowissa model uses sapphire crystal.

No. Jowissa watch crystals are made from materials such as mineral glass or sapphire crystal, depending on the model. “Diamond cut” refers to the faceted shape and finishing technique, not to the material. Check the product specifications to see which crystal your watch uses.

Selected Jowissa models use genuine diamonds as dial markers when “Diamonds” is stated in the product specifications. A “diamond-cut” glass, however, describes a faceted shape and finishing technique; it does not mean the glass contains diamonds. Check the specifications for your exact model.

No. A watch tested to 3 ATM is intended for light rain, perspiration and brief accidental contact with water. It should not be worn while swimming, bathing or showering. Always check the rating in the specifications for your exact model.

No. Watches tested to 5 ATM are designed to withstand rain, perspiration and brief contact with water. They are not intended for swimming or diving. For water activities, choose a model with a rating specifically suited to that use and follow its product specifications.

A tachymeter is a scale used with a chronograph to calculate average speed over a known distance. Start the chronograph at the beginning of one kilometre or one mile and stop it at the end. The central chronograph seconds hand points to the average speed in units per hour. For example, 30 seconds over one kilometre corresponds to 120 km/h. The scale only works for times within its displayed range.

A mechanical watch movement is a purely mechanical system that powers the watch, keeping time through the intricate interaction of various components. Unlike quartz movements that rely on a battery and electronic circuitry, mechanical movements operate using energy stored in a mainspring, which is typically wound manually by turning the crown or automatically through the motion of the wearer's wrist.

The main components of a mechanical watch movement include:
- Mainspring: A tightly coiled spring that stores the energy to power the watch.
- Gear Train: A series of interconnected gears that transmit the energy from the mainspring to the escapement at a controlled rate.
- Escapement: A crucial mechanism that regulates the release of energy from the gear train, ensuring the hands move at a consistent pace. Key parts of the escapement include the escape wheel, pallet fork, and balance wheel.
- Balance Wheel: An oscillating wheel that, along with the hairspring, vibrates at a precise frequency, acting as the timekeeping heart of the movement.
- Hairspring: A delicate spiral spring that controls the oscillation of the balance wheel.

Mechanical movements are appreciated for their craftsmanship, the beauty of their intricate mechanics, and the absence of a battery requirement. They represent a long-standing tradition in horology and are often favored by watch enthusiasts for their heritage and the skill involved in their creation and assembly.

At Jowissa, while we also offer quartz timepieces known for their precision and convenience, our mechanical watches showcase the art and complexity of traditional watchmaking. These movements require regular maintenance, including cleaning and lubrication, to ensure optimal performance and longevity. The subtle sweep of the second hand, characteristic of many mechanical watches, is a visual indicator of the movement's intricate operation.

An automatic watch movement, also known as a self-winding movement, is a mechanical movement that harnesses the kinetic energy generated from the natural motion of the wearer's wrist to wind the mainspring. This eliminates the need for manual winding, provided the watch is worn regularly.

The key difference between an automatic and a manual mechanical movement lies in the addition of an oscillating weight, or rotor, in the automatic movement. This semi-circular or shaped weight pivots freely on a central staff and swings back and forth as the wearer moves their wrist. This motion is then transferred through a series of gears to wind the mainspring, the energy source of the watch.

Key components specific to an automatic movement include:
- Oscillating Weight (Rotor): A weighted component that rotates with the movement of the wearer's wrist.
- Winding Train: A set of gears that transmits the rotational motion of the rotor to the mainspring barrel, winding the mainspring.
- Reversing Mechanism: A system, often utilizing pawls or gears, that ensures the mainspring is wound regardless of the direction in which the rotor spins.

Automatic movements retain the intricate mechanics and craftsmanship of traditional mechanical movements while offering the added convenience of self-winding. As long as an automatic watch is worn with sufficient frequency, it will remain wound and continue to function without manual intervention. If an automatic watch is not worn for a period, the power reserve stored in the mainspring will deplete, and the watch will need to be wound manually (typically by turning the crown) to restart.

Jowissa offers a selection of automatic timepieces that showcase the beauty and engineering of these self-winding movements. These watches provide a seamless blend of horological tradition and everyday practicality. We encourage you to explore our collection to discover the elegance and convenience of Jowissa automatic watches.

Edelweiss is an Alpine flower traditionally associated with courage, devotion and the mountain landscape. For Jowissa, it is a natural symbol of the brand’s Swiss roots and its home in Bettlach, Switzerland.

No. Jowissa croco-style straps are made from calf leather embossed with a crocodile pattern. This creates the distinctive look of crocodile leather without using crocodile hide. Check the product specifications for the exact material of each strap.

Luminous hands on a watch refer to the hands (hour and minute, and sometimes the second hand) that have been treated with a phosphorescent material. This material absorbs light from various sources, such as sunlight or artificial light, and then emits that light over a period of time, allowing the wearer to read the time in low-light or dark conditions.

At Jowissa, we incorporate luminous hands into select models to enhance their practicality and legibility. This feature ensures that the time can be easily discerned, even when visibility is limited. The application of luminous material is carefully considered in our designs to complement the overall aesthetic of each timepiece while providing functional benefit to the wearer.

The name Jowissa is derived from the name of company founder Josef Wyss. He founded the business in Bettlach, Switzerland, in 1951, and Jowissa has operated continuously since then.

The expected battery life is 2 to 4 years depending on external factors like heat and cold. Jowissa uses standard silver oxide battery cells in combination with high quality and low energy consuming Swiss quartz movements.

Leather bands should not be washed with water. For cleaning your strap refer to your local watch dealer to get a special leather cleaning product.

Yes, the length of our steel and ceramic bracelets can be adjusted to fit an individual wrist size. When you order with jowissa.com we shorten the bracelet for you free of charge. Optionally your local watch dealer may also offer the bracelet adjustment as a service.

A Jowissa watch is tested for water resistance from 3 to 30 ATM, depending on the collection.
3 ATM: Watches tested to 3 ATM should not be worn while bathing or showering. They are built to withstand light rain, perspiration and brief contact with water.
5 ATM: Watches tested to 5 ATM are designed to withstand rain, perspiration and brief contact with water. They are not intended for swimming or diving.
10 ATM: Suitable for swimming and other surface water activities. Not intended for diving.
20 ATM: Suitable for swimming, water sports and recreational diving.
Always follow the water-resistance rating and product specifications for your exact model.

Yes. Many Jowissa watches use interchangeable bands, and selected bands have a quick-release system that can be changed without tools. Other straps or bracelets may require a spring-bar tool or a watchmaker. Before ordering, check the band width and attachment type for your watch.

On a Jowissa watch, “diamond cut” refers to precisely faceted glass or dial surfaces that reflect light like a cut gemstone. It describes the shape and finishing technique; it does not mean that the watch crystal is made of diamond.

Measure the distance between the lugs where the band attaches to the watch case. The replacement band must have the same width and a compatible attachment. Jowissa offers several widths, including 12, 15, 18, 20 and 22 mm, but availability depends on the model. If you are unsure, contact us with the watch reference and a clear photo.

The radiant cut is a beautiful and unique diamond shape that combines the elegance of an emerald cut with the brilliance of a round brilliant. It's a popular choice for those who want a diamond with a lot of sparkle and a distinctive shape.

Rather than diamond, Jowissa utilizes expertly cut mineral glass (for watches) and Austrian crystal (for jewelry), each piece faceted in the radiant cut to capture and reflect light with exceptional brilliance.

The term "brilliant cut" in the world of diamonds refers to a specific way of cutting a diamond to maximize its brilliance, which is the amount of light it reflects back to the viewer. It's not just about the shape of the diamond, but also the arrangement and number of facets (the flat surfaces on a diamond).

Brilliant cut diamonds have a large number of facets, typically 57 or 58. These facets are strategically placed to capture light entering the diamond and reflect it back out. The round brilliant cut is the most popular and widely recognized.

Rather than diamond, Jowissa utilizes expertly cut mineral glass (for watches) and Austrian crystal (for jewelry), each piece faceted in the brilliant cut to capture and reflect light with exceptional brilliance.

A chronograph is a watch with a built-in stopwatch function. Pushers on the case start, stop and reset the chronograph without interrupting normal timekeeping. Separate hands or subdials display the measured seconds and, depending on the model, minutes or hours.