Power saving mechanism with pulled out stem: Reduction of consumption approximately 70%
Very easy handling by two pushers
Big date with quick change
As Ronda mentioned, the big date has a quickset function but the day of the week does not. When setting the day of the week, you will have to put the watch in time setting mode and go all the way around until the day of the week indicator points to the correct day.
How to Change the Battery:
Changing the battery on the Ronda 8040.N isn’t difficult, but you have to be very careful not to lose the 2 tiny screws that hold the battery clamp (battery cover) down. Also, make sure the orange insulator film located below the battery doesn’t fall out. You will need battery cell #395 which you can order here.
Once you have the caseback removed, unscrew the two screws and lift up the cover.
Put a new battery in with the positive side up (markings on the battery up).
Carefully replace the cover, sliding the lip below the movement plate.
Replace the 2 screws.
At the time of this post, replacement prices for the 8040.N were found in the range of $95.95 to $112.95 USD.