The water resistance rating of a watch does not take into account the ability of the watch to STAY water resistant as it ages. Please be aware that temperature fluctuations and external influences, for example due to solvents, cosmetics, dust or shocks, caused by impacts or sudden movements, can fundamentally affect water-resistance. Often a watch gets hit by a shock onto the crown or crystal without leaving visible marks, but the internal parts could become damaged and the watch will no longer be water resistant. You also need to consider that seals and sealing systems in particular are subject to wear and tear and natural ageing, e.g gaskets at the crystal, crown and case back.
Therefore, we suggest that before engaging in activities that could subject your watch to extraordinary stress (team sports, jumping into water from more then 3 feet/1 meter, deep diving, temperature shocks from hot sun to colder water, big wave surfing, etc), you are advised to remove your watch.
Please also note that not all straps or bracelets are suitable for use in or under water. Furthermore, with exception of the turning bezel, the moving parts of the watch (crown, buttons etc.) should not be operated under water. Before wearing the watch in or under water, you should also make sure that all moving parts are in their rest position, especially the screw-on crown must be firmly tight. After use in or under water, your watch should be rinsed with clear fresh water and then cleaned and dried.
Do not under any circumstances open the watch by yourself. The water resistance should be tested regularly, and at least annually, by an official Luminox agent.
Typically water-resistant watches are usually tested for water-resistance on the basis of international standards ISO 2281, and only especially constructed diver's watches (like Luminox series 1500) undergo much tougher testing procedures on the basis of international standard ISO 6425.. Our minimum water resistance recommendations are as follows for the following activities in water environments:
- Splashing - 3 ATM (30 meters)
- Water surface activities - 5 ATM (50 meters)
- Swimming/snorkelling - 10 ATM (100 meters)
- Diving - 20 ATM (200 meters)
- Deep diving special testing procedure required according to ISO 6425