Please note that like with any micromechanical precision instrument, LLARSEN watches should have regular maintenance. This keeps your watch in perfect working order and makes it last longer. The frequency with which this maintenance work needs to be carried out depends on the model, as well as climatic conditions and the owner’s care of the watch. Therefore we cannot give a specific time interval for servicing. We generally recommend that a complete maintenance service should be carried out every 3 years.

To ensure that the services are performed professionally, you should take your watch to an authorized watch store.

Water-resistance, basic advice for safeguarding the water-resistance of your watch: The water resistance should be regularly checked i.e every 12 months by an authorized watch store. You should ensure that the crown, according to the model, is pressed back at all times into position 0, or with a screwed down crown, that it is screwed back carefully, so that water cannot get into the mechanism. During the final check, LLARSEN watches are checked for water-resistance as marked on the bottom of the back of your watch case, but the water resistance of a watch is not permanent. The water-resistance can be impaired by accidental knocks to the case and crown, as well as natural wear of the internal gaskets.

The degree of water resistance is indicated on the back of the watch case: 

3 bar - rainresistant (30 m)*

5 bar - showerresistant (50 m)*

*ATM is an abbrevation for atmosphere. The ATM number indicates the water pressure at the corresponding meters. This does not mean that a LLARSEN watch indicated with 3 ATM should be used for diving 30 meters, neither should a watch indicated with 5 ATM be used for diving 50 meters etc. LLARSEN watches' are tested in special pressure-testers in which the water pressure is consistant. These tests do not take into consideration sudden increasing of water pressure that might occur when jumping, swimming or diving in the sea. 

For optimal maintencance LLARSEN recommends to remove your watch before showering or swimming, as some components of the watch such as leather- and mesh straps can be damaged when being in contact with water. 

Leather straps: Please note that leather is a natural material subject to natural ageing. Depending on your wearing habit, the strap should be replaced regularly for reasons of safety (security of the watch on your wrist), as well as aesthetic and hygiene reasons. If worn daily, it may need to be changed every 6 to 12 months. To keep your leather strap in good condition for as long as possible, LLARSEN recommends the following: Don’t expose your wristband to sunlight for long periods as this can fade it. Don’t forget that leather is permeable. So avoid contact with oily substances and cosmetics. To prevent discolouration and deformation, avoid contact with water and moisture.

Bathing in the sea: Always rinse your watch with clear water, when it comes in contact with salt water.

Cleaning: For metal bracelets and for all water-resistant cases use a small brush i.e a toothbrush in light soapy water. Use a soft cloth to dry it so that you do not scratch the watch or the metal bracelet.

Chemical products: Avoid direct contact with solvents, detergents, perfumes, cosmetic products etc., since they may damage the bracelet, the case or the internal gaskets. If you have been swimming in chlorinated water, rinse your watch in clear water afterwards.

Magnetic fields: Do not expose your watch to any intense magnetic fields, such as metal detectors or electromagnetic appliances. This can damage your watch or impair its accuracy.

Temperatures: Do not expose your watch to sudden temperature changes (exposure to sunlight followed by immersion in cold water) or extreme temperatures over 60°C (140°F) or under than 0°C (32°F). Or for examble sauna to shower / swimming pool to shower.

Shocks: Whether thermal or any other shocks, avoid them. In the event of violent shocks, please have your watch checked by a LLARSEN approved retailer.

Batteries: LLARSEN batteries have a lifetime of approx. 12 months, but may vary depending on the type, size and amount of energy used by the different functions. If the second hand begins to jump in 4 second intervals, the battery needs to be changed (end of life indicator).

Changing the battery: We recommend that you take your watch to an authorised LLARSEN retailer as they have the tools and testing equipment necessary to carry out the work professionally. An empty battery must be changed as soon as possible to avoid the risk of leakage and resulting damage to the watch mechanism. For further questions, please contact: