Engineer III Outlier - 40mm - Blue

COSC (Contrôle Officiel Suisse des Chronomètres) certification means the watch movement has passed rigorous accuracy tests in various positions and temperatures, ensuring high precision.

The main hands show local time. The GMT hand, set independently, shows a second, consistent time zone (e.g., your home time). The rotating bezel can be used to track a third time zone.

Yes, 904L stainless steel is a higher-grade alloy containing more nickel and chromium, offering superior corrosion resistance and a brighter luster compared to 316L.

The BALL micro gas tubes are designed to glow brightly for up to 25 years without any external power source or charging.

This depends on the specific water resistance rating of your model. Check the case back for the ATM rating. Typically, watches with 100m water resistance are suitable for swimming, but always avoid operating the crown underwater.

For optimal performance and longevity, it is recommended to have your Ball Watch Company timepiece serviced by an authorized center every 3-5 years.

The mu-metal shield provides excellent anti-magnetic protection, shielding the watch's delicate movement from magnetic fields that could affect its accuracy.

Ensure the watch has been wound sufficiently. If it's an automatic, wear it for at least 8 hours a day or manually wind it. Check if the watch has been exposed to strong magnetic fields or extreme temperatures.

Ensure you are setting the date when the local hour hand is between 3 AM and 9 PM. Avoid setting the date between 9 PM and 3 AM, as this is when the date-changing mechanism is engaged.

Verify that the GMT hand was set correctly using the crown in the second position. The GMT hand should move independently of the local hour hand.

Gently clean around the bezel with a soft brush or a damp cloth to remove any debris. Avoid forcing the bezel.

Micro gas tubes provide their own illumination and do not require external light. If they appear dim, this is a characteristic of their function. Contact customer service if they are not visible at all, as this may indicate a fault.