When the Eco-Drive watch stops, what should be done to restart it?
Expose the Eco-Drive to the light. Your Eco-Drive watch will charge in one third of the time if you pull out the crown while charging under normal charging conditions. The amount of charging time required varies depending on model and light conditions. Estimates are detailed in your instruction book.
The second hand jumps in 2-second intervals. Why?
This is the Insufficient Charge Warning feature, and indicates the battery is not yet charged enough. Once the battery is fully charged, the second hand will resume normal operation.
The second hand moves at irregular intervals, such as 1-second, 1-second and 2-second. What does this mean?
This is the Time Setting Warning feature. The irregular interval movement indicates that the time shown is incorrect because the watch stopped once then started again. After recharging and adjusting your watch, the second hand will resume normal operation.
The second hand runs very quickly, then resumes normal operation. Why?
Eco-Drive watches with the Power Saving feature stop the second hand to save energy when away from light (in the dark, a drawer or under sleeves, for example). Once exposed to light, the hands move very quickly to catch up to the correct time, which has been tracked internally by the watch.
Can Eco-Drive watches be recharged under fluorescent lamps?
Yes. As long as the dial is exposed to light regularly, the watch rarely stops.
Does recharging time vary with the seasons?
Yes. Recharging varies according to the illuminance from the source of light: in winter the required time for recharging is longer than summer, because the illuminance of the sun is weaker. Also, in winter, watches tend to be kept under sleeves of overcoats or thick jackets that hinder the absorption of light energy. We recommend you expose your Eco-Drive to the sunlight from time to time.
What are the life spans of solar cells and rechargeable cells?
According to our data, both solar and rechargeable cells will last more than 10 years. It is speculated that initial capacities may wane up to 20 per cent over 20 years; however, we do not expect this to interfere with the use of the watch.
Do Eco-Drive watches require regular maintenance?
With regard to water resistant models: in order to maintain the water resistance quality, we recommend you replace the gaskets in regular intervals. Gaskets age and deteriorate while being used or even just in storage. The gears in watches also wear little by little. Therefore, regular maintenance by qualified watchmakers or authorised service centres is recommended in order to extend the life of your watch.
What is the Power Save function?
The solar cells stop generating electricity if a lack of light energy occurs. In order to avoid losing energy, the second hand stops at the position of 12 o'clock. In some models both the minute and second hands stop (Power Save 1 mode). When light falls on the dial, the watch will resume normal operation. If lacking light energy for three days, the calendar will also stop to further minimise energy loss (Power Save 2 mode). When light reaches the dial again, the watch will resume normal operation. Some watches also offer a Manual Power Save mode. *Functions vary depending on the models.*
Why has the battery run down soon after purchase?
Except for Eco-Drive models, batteries are installed in new watches before shipment in order to check functions work properly as designed. Therefore, batteries may have been in use for a considerable time prior to the watch purchase.
How do I care for the band on my watch?
Metal bands
Will retain their beauty for a long time if proper care is exercised; however, occasional cleaning may be necessary as dust and dirt accumulate from everyday wear. To clean, first remove the metal bracelet from the watch, then use a soft brush and warm soapy water to clean the bracelet. Be sure to thoroughly rinse the metal bracelet with clear water and completely dry it before reinstalling it. If you cannot remove the bracelet and your watch is 50M water resistant or more, you may wash it without removing it.
Leather bands
Leather straps are more susceptible to damage and premature wear from moisture. Wipe both the inside and outside daily with a dry cloth to remove contaminants. If saturated, allow the strap to fully dry before wearing again.
Rubber watch band
Rubber straps are sensitive to perspiration, salt water and oil, which can cause cracking. Clean regularly with a soft toothbrush and mild soapy water. Rinse thoroughly and dry completely. Use a rubber protectant to extend lifespan.
The watch got foggy inside the glass. What care is required?
Condensation can occur when the glass is cooled suddenly by external moisture. If it clears in a few minutes, no issue. If fog remains, water sealing may be compromised and the watch should be inspected by an authorised service centre.
Can I wash a 10-bar water resistant watch with tap water?
Yes, you can wash it with tap water.
What is the difference between WR200 and Divers 200M?
Divers 200M watches are ISO-rated for diving and undergo much stricter water-resistance testing. WR200 watches are suitable for frequent water exposure but not diving.
How frequently should watch gaskets be replaced?
Gaskets deteriorate with age. For water resistance, replace gaskets every 2–3 years. Eco-Drive watches do not need battery changes, so gasket replacement becomes more important.
When is a Leap Second introduced?
A leap second is added to keep atomic time aligned with Earth's rotational time. It is added irregularly, usually at the end of June or December, depending on astronomical conditions.
Why is IIII used instead of IV on watch dials?
Originating around 1364 in Paris, King Charles V disliked "IV" on a clock because it looked like "5 minus 1". He ordered it changed to "IIII", and the tradition has continued among watchmakers since.
