Ronda Caliber 763
|Caliber Number||763 (Normtech)|
|Diameter||6 3/4”’ x 8”’ (15.3mm x 18.1mm)|
|Battery Cell Number||364|
|Stem||401-1237, tap 10|
|Claimed Battery Life||40 months|
|Functions||Hours, minutes, central seconds|
|Country of Assembly||Switzerland|
||List models in the comments below!|
Caliber 763 VS 763E
According to the Ronda website, there are two versions of the caliber 763. The movement listed here is a 763 which is gold plated EOL with 1 jewel. The caliber 763E (Powertech) is nickel plated with 1 jewel.
Some manufacturers will put “Ronda 763” in their specs even though the watch actually has a 763E. This may not be deliberate since the caliber number is “763” on both variations. If you check the 763E page here, you will see the 763E without the E engraved.
- Repairable metal movement
- Power saving feature (pull out the crown to setting position to save 70% of the battery)
In their official documentation, Ronda claims an accuracy rate of -10~+20 seconds per month.
Most of the replacements available online are the nickel plated 763E. Replacement prices for the 763E were found in the range of $4.95 – $6.95.
The photos in this post are of a caliber 763 found in a ladies Croton watch.