When storing your Hermès watch, it should ideally be kept in the box received at the time of purchase or in a case designed for the purpose (such as a watch winding box for automatic mechanical watches only). If you own several watches, avoid direct contact between them in order to prevent aesthetic damage. Keep your Hermès watch in a well-ventilated place away from moisture and heat. It is strongly advised to avoid prolonged exposure to direct sunlight or bright lighting as UV rays from sun light can produce changes in colour to the dial, to the hands and the strap.

As with all precision instruments, the movement of your Hermès watch must be regularly inspected and maintained in order for it to perform at its optimum level. Both mechanical models and quartz models should be serviced every five (5) years.

Even when you don't use your Hermès watch with a quartz movement, the battery is still powering the mechanism. If an emtpy battery is left in the movement, the acidic electrolyte inside the battery could eat through the battery seals and leak into the movement causing damage. It is important, therefore, to avoid keeping empty batteries inside quartz movements.

The water resistance of your Hermès watch has to be tested and re-established when necessary in accordance with the Hermès factory standards for your model. Water resistance depends on the hermetically sealed assembly of the case, the glass and the winding-crown, as well as on the maintenance of numerous joints or gaskets. We recommend that the seals on your Hermès watch are tested every two (2) years if it is designed for and used in water. This service is offered free of charge when you visit one of our Hermès stores.

There are an increasing number of magnetic fields present in our environment. These can cause inconsistent timekeeping and the movement of your Hermès watch to come to a complete stop. If you own a quartz model, these effects are temporary and only distance from the magnetic source is required to revert them. If you own a mechanic model, we recommend that you visit your closest Hermès store in order to have your watch and all of its components demagnetised by a certified watchmaker. Never expose your Hermès watch to a strong magnetic field (e.g.: medical MRI, microwave oven) and avoid any exposure within 10 cm of any other intense magnetic fields (e.g.: mobile phone, magnetic bag or bracelet clasps, refrigerators, electronic devices).

A sudden strong shock caused by the practice of sports such as golf, an accidental fall to the floor or blow to the case may not only damage the exterior appearance of your Hermès watch but also cause damage to its mechanism.There are parts within the mechanism which are less than a 10th of a millimetre in diameter. Damage to these parts may not be apparent from an external examination of your Hermès watch but they can be critical to its performance.

The optimal temperature range for your Hermès watch is between 0 to 50 °C (32 to 122 °F).
– Prolonged exposure to temperatures below 0 °C (32 °F) can cause a deviation in the performance (usually a loss of time).
– Prolonged exposure to temperatures above 50 °C (122 °F) can also cause alterations to the timekeeping and should therefore be avoided.

Since Hermès wishes to preserve the authenticity and unique feel of its leather straps, the hides used have been given the most natural possible treatment. This means the straps are not excessively protected and thus acquire a regular patina over time which represents one of the distinctive aesthetic characteristics of Hermès leather products.
This extreme respect for quality makes the straps more sensitive to water and to surrounding humidity. Wearing a Hermès watch fitted with a leather strap for sport activities is not advisable. Instead, we recommend wearing a metal bracelet or a rubber strap.