Yes, quartz watches are known for "high accuracy." Because the quartz crystal vibrates at such a stable and high frequency, they are typically much more accurate than mechanical watches, often varying by only a few seconds per month.

It works through a circuit: a battery sends electricity to a quartz crystal, causing it to oscillate (vibrate) 32,768 times per second. A microchip detects these vibrations and converts them into regular electric pulses (one per second). These pulses drive a stepping motor, which turns the gears and moves the watch hands.

A quartz watch is a timepiece powered by a battery rather than a wound spring. The "quartz movement" refers to the internal engine of the watch, which uses a tiny crystal of quartz mineral to regulate time. This crystal vibrates at a very precise frequency when electricity is passed through it, ensuring high accuracy.

Reading a Roman numeral watch is simple once you know the three basic symbols: I (1), V (5), and X (10). The numbers 1 to 3 are written as I, II, and III. The number 4 is traditionally written as IIII on watches. From 6 to 8, you add I to V (VI, VII, VIII). 9 is written as IX (one before ten), and 12 is XII. This elegant style is the signature feature of the Jowissa Roma collection.

This is known as the "Watchmaker's Four." We use IIII instead of IV primarily for visual symmetry. On a round dial, the four characters of IIII perfectly balance the four heavy characters of VIII (8) on the opposite side. It also creates a harmonious pattern: the first four numbers use only I, the next four use V, and the last four use X. This classical tradition is kept alive in our Swiss Made timepieces.

The ideal watch size depends on your wrist circumference and personal style. As a general rule, for wrists under 15cm, case diameters between 20mm and 30mm look most balanced. For wrists between 15cm and 17cm, sizes from 30mm to 35mm are ideal. For larger wrists, cases 35mm and above provide a bold look. Jowissa offers a variety of sizes, ranging from our petite 20mm mini models to our larger 45mm options for men.

A watch can only be labeled "Swiss Made" if it meets strict legal standards set by the Swiss government. It requires that the movement is Swiss, the movement is cased up in Switzerland, and at least 60% of the production costs of a watch taken as a whole must from Switzerland. At Jowissa, we proudly assemble our watches by hand in Bettlach, Switzerland, ensuring every timepiece meets these high standards of quality and precision.

According to etiquette, a woman should wear her watch on the left wrist if she is right-handed. This traditional rule places the watch on the non-dominant hand to prevent damage and scratches from daily tasks. However, modern fashion is flexible: many women choose the wrist that best complements their other jewelry. If you wear a heavy bracelet on your left hand, it is perfectly stylish and practical to wear your watch on the right wrist to balance your look and avoid scratching the timepiece.

Physical Vapour Deposition (PVD) is a process where an exceptionally pure, solid coating material is used to generate an ionized metal vapour which forms a coating mixture with inert gases.

Through condensation, a thin layer is deposited onto the surface of the watch. The PVD process is carried out under a forced vacuum in a coating chamber. This procedure is one of the most modern and ecologically sustainable coating technologies. PVD coatings are highly adhesive, hard and abrasion-resistant. They are extremely smooth and particularly suited to coating watch parts. These coatings can be single-layer, multi-layer or can be applied in graduated layers. The layer thickness ranges from 1 to 5 microns, although in some cases, just 0.5 microns or 15 microns and more can be applied.

Depending on the initial material and the inert gas employed, a wide range of PVD coatings can be applied. Essentially, these fall into four main groups: nitrides, carbides, oxides and carbons (Diamond like carbon).

A mother-of-pearl dial is crafted from the iridescent inner layer of certain mollusk shells, primarily oysters and abalone. This natural material is prized for its unique visual properties, exhibiting a shimmering play of colors that can include whites, creams, pinks, blues and greens. The exact hues and patterns vary from one piece to another, making each mother-of-pearl dial truly individual.  

What makes a mother-of-pearl dial special is its inherent beauty and the way it interacts with light. The nacreous structure of the shell refracts light, creating a subtle, dynamic luster that shifts as the viewing angle changes. This gives each watch dial a distinctive and luxurious character.  

At Jowissa, we often feature mother-of-pearl dials in our ladies' collections to enhance the elegance and sophistication of our timepieces. The natural iridescence complements our design aesthetic, adding a touch of unique artistry to each watch. Due to the organic nature of the material, every Jowissa watch with a mother-of-pearl dial is a one-of-a-kind piece, showcasing the beauty of the natural world.

A watch with a water resistance rating of 5 ATM (atmospheres) is suitable for everyday use and can withstand splashes, rain, and showering. According to ISO standard 22810, this level of water resistance signifies that the watch can withstand static pressure equivalent to submersion at a depth of 50 meters.

While a 5 ATM rating offers more protection than a 3 ATM rating, it is important to understand the limitations for swimming. The dynamic forces exerted during swimming, such as the movement of your arms through the water and the impact of diving, can create pressure that exceeds the static test conditions.

Therefore, while your Jowissa watch with a 5 ATM rating can tolerate brief immersion and splashes, we generally advise against wearing it for prolonged swimming or diving activities. Consistent exposure to these conditions may compromise the water-resistant seals and potentially lead to water damage which would not be covered under the warranty.

For regular swimming or more intensive water activities, we recommend considering Jowissa models with a higher water resistance rating, typically 10 ATM or more. These models are specifically designed and tested to withstand greater water pressure and are more suitable for such use. Please refer to the technical specifications of each Jowissa watch on our website for detailed information on their water resistance level.

A water resistance rating of 3 ATM indicates that your timepiece is splash-resistant. It is designed to withstand accidental contact with water, such as handwashing or light rain.

However, a Jowissa watch with a water resistance rating of 3 ATM is not suitable for swimming.

The water pressure encountered during swimming, particularly with arm movements or when submerged, can exceed the protection level of a 3 ATM rating. This can lead to water entering the watch case and potentially damaging the movement, which would not be covered under warranty.

For water-related activities, we recommend considering Jowissa models with a higher water resistance rating. You can find detailed information about the water resistance of your specific watch model in the product specifications on our website.

It's important to consider the context in which "diamonds" might be mentioned in the watch description.

If the specifications of your Jowissa watch indicate "Diamonds" as hour markers, then these are indeed small, genuine diamonds that have been carefully set onto the dial to mark the hours. We use real diamonds in select models to enhance their elegance and luxury.

However, the term "diamond" is also significant in relation to Jowissa's distinct design element: the diamond-cut glass. This refers to a specific step in the production process where the edges of the watch crystal are precisely cut using diamond tools. This meticulous cutting technique creates the multi-faceted, brilliant edge that is a hallmark of many Jowissa timepieces. While diamond tools are used in this process to achieve the characteristic sharp and reflective finish, it does not mean that the watch itself contains diamonds as part of the glass. The "diamond cut" refers to the style and the method of achieving it, not the material of the glass edge itself.

Therefore, please refer to the specific features listed for your watch model. If "Diamonds" are mentioned as hour markers, they are genuine. If the description highlights a "diamond-cut glass," this refers to a design and manufacturing technique applied to the crystal edge for aesthetic purposes.

The transparent cover on your watch face, which is often called the crystal, is not made of real diamond. Instead, Jowissa watches use high-quality materials such as mineral glass or sapphire crystal for their watch crystals.

Real diamonds are very precious and have a high cost. If watch crystals were made from genuine diamonds, the price of the watch would be significntly higher.

The materials we use, mineral glass and sapphire crystal, are chosen because they offer good protection for the watch face, allowing you to easily read the time. Sapphire crystal is especially known for its excellent durability and resistance to scratches, even more so than mineral glass.

Therefore, while the crystal on your Jowissa watch is not a real diamond, it is made of qualitative materials selected for their clarity and protective properties, ensuring the longevity and readability of your timepiece.

The name Jowissa is a combination of the surname and lastname of the company founder Josef Wyss. He founded Jowissa in the village of Bettlach, Switzerland in 1951. Jowissa has been active and in business without interruption 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.