Suppliers to the Jewellery Trade

Technical Information Sheet
Battery Change Procedure

Step 1  If the watch has a continuous bracelet, take a tool with a point and release the spring bar in the clasp to separate the bracelet in two sections.

Step 2  Clean the outside of the watch with a selvyt, at the same time checking to see how it should be opened.
Step 3  Using a case-opener, gently open the case and take off the back.
Step 4  Note which way up the old battery was inserted.

Step 5  If applicable, unfasten the battery clamp.
Step 6  Turn the watch gently onto its side and, with the help of plastic tweezers, ease the battery out.
Step 7  If the contacts are dirty, clean them with a buff-stick or a clean pencil eraser.

Step 8  Referring to the operating instructions (that were meticulously filed away for this moment), the movement, or a Battery Cross Reference Guide, ascertain the type and model of new battery that should be used.
Step 9  Take a New Renata Battery from your stock. Remove it from its package and check that it is in good condition. If you have a battery tester, use it.

Step 10  With plastic tweezers, insert the new battery in the watch.
Step 11  If applicable, fit the battery clamp.
Step 12  Turn the watch over and look at the hands to make sure the watch is running.

Step 13  If the watch has a gasket, check that it is in good condition and place it in position. If it is not in good condition, replace it with a new one.
Step 14  Check the cleanliness of the inner side of the caseback and clean it if necessary. Put the caseback on again and close the watch.
Step 15  If the watch has a continuous bracelet, fit the spring bar into the clasp. Set the watch and give it a final polish with a selvyt.