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).

While we appreciate your interest in our brand's history, please understand that Jowissa, as a contemporary watch manufacturer, primarily focuses on the development and production of our current collections.

Assessing the value of older or antique timepieces can be a complex process. Unlike modern, standardized products, the worth of a vintage watch is often subject to various factors that fall outside our area of expertise. These factors can include the watch's rarity, condition, historical significance, original packaging and documentation, and current market demand among collectors. What might be a valuable collector's item for one individual could hold little to no monetary value for another, as its worth is ultimately determined by the market and the specific interests of potential buyers.

Furthermore, historical record-keeping practices were different in the past, and detailed archival data for all older Jowissa models may not be readily available. This can make it challenging to provide an accurate assessment of a specific vintage piece.

For an expert valuation of your vintage Jowissa watch, we recommend consulting with specialized antique dealers, auction houses that handle vintage timepieces, or certified horological appraisers who possess the specific knowledge and market insights required for such evaluations. They will be better equipped to consider the nuances of the vintage market and provide you with a more informed assessment.

Jowissa's croco style straps are crafted from fine calf leather. These straps are designed to emulate the elegant appearance of genuine crocodile leather through a special embossing process that creates the distinctive crocodile pattern.

This choice of high-quality calf leather allows us to offer straps that are both aesthetically appealing and durable, while also adhering to ethical and sustainable practices. The embossed crocodile pattern provides the desired sophisticated look and texture.

The Edelweiss flower holds significant cultural meaning, particularly in Alpine regions. It is widely recognized as a symbol of courage, nobility, and purity, often associated with the rugged beauty and resilience of the mountains where it thrives.

For Jowissa, a brand rooted in Swiss heritage, the Edelweiss resonates deeply with our values. It embodies the enduring quality, timeless elegance, and inherent strength we strive to reflect in our Swiss-made timepieces. Just as the Edelweiss flower withstands challenging conditions, our watches are crafted to endure and accompany you through life's moments. The flower's delicate yet resilient nature mirrors the sophisticated durability we build into each Jowissa design.

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.

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

A Jowissa watch is tested for 3 to 20 ATM water resistance depending on the collection.
3 ATM: Watches tested for 3 ATM should not be worn when bathing or showering. They are build to withstand light rain, sweat and brief water contact.
5 ATM: Watches tested for 5 ATM are made to withstand rain, sweat and short swims.
10 ATM: Short dives, swim and other water sports are ok
20 ATM: Deep Dives, swims and other water sports are ok.

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.

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.

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.

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.

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.