Ronda Caliber 513s

Ronda Caliber 513S

Ronda Caliber 513s

ManufacturerRonda
Caliber Number513S
Base Caliber
513
TypeQuartz
Diameter11 1/2”’ (25.6mm)
Height
3mm
Battery Number371 (1.5 V)
Battery Life
24 months
Stem401-1483
Hand Sizes120/70/20
Jewels1
FunctionsHours, minutes, central seconds
Country of ManufactureSwitzerland
Known Models
Bulova for Harley Davidson (add yours to the comments below!)

This is the Ronda caliber 513S quartz watch movement. it is part of the Powertech line. There are two versions of this caliber: Swiss made and Swiss parts. Both versions are nickel plated with one jewel. It is considered a repairable movement.

In Ronda’s words:

Affordable metal movements for reliable quality watches.

Ronda caliber 513 vs 513S

The caliber 513S is the newer version of the 513. It has a motor pulse fix included.

Ronda caliber 513S vs 515S

The difference between these two movements is that the Ronda caliber 515S is basically the same as the 513S but with an added date complication.

Accuracy

According to Ronda, the caliber 513S should keep time within -10/+20 seconds per month with an operating temperature of 0 to 50 degrees Celsius.

Power Reserve

A fresh battery (cell 371) should last for 24 months. This caliber has a power saving (hacking) function that stops the second hand when the crown is pulled out. Doing this will reduce power consumption by about 70%.

Caliber Number Location

Ronda does not stamp the metal part of this movement with the caliber number, instead, you can find a reference on the outer plastic part of the movement.

Ronda Caliber 513s Caliber Number

How to change the battery

There is a metal locking mechanism for the battery that just uses tension to hold it into place. Gently put your tweezers or other tool in the hole and slide it over – not too hard and not too far. The battery will pop out like in this video. Do not remove the screw.

Ronda Caliber 513s Battery Replacement

Stem Removal

To remove the crown/stem, find the hole with the arrow. While the crown is in position 0, pressing this with your tweezers or other tool will allow the stem be unlocked so you can pull it out.

Ronda Caliber 513s Crown Stem Removal

Exploded View

Ronda Caliber 513s Exploded Drawing

Replacement Prices

At the time of this post, replacement prices for this watch movement were found in the range of $8.95-9.95 USD.

Additional Resources

Do you have a watch with this movement? Please share it with the community in the comments below…


You are reading Caliber Corner, the most popular resource for watch movement pics, specs, mods and DIY repairs. Follow @calibercorner on Twitter, Instagram and Facebook. Subscribe to the YouTube channel. Join our mission to spread movement awareness. Sign up!
What do you think about Ronda Caliber 513S? Keep comments respectful and follow our community guidelines.
Subscribe
Notify of
guest
3 Comments
oldest
newest most voted
Inline Feedbacks
View all comments
Dan
Dan
1 month ago

I have this movement in a Mondaine large date wristwatch. It is one of the Official Swiss Railway Clock models. The date doesn’t go from 31 to 01 but will count up to 39 then 00. Finally it would reach 01. I have been told this is normal for the caliber. I have my doubts about that. Have any other people heard that?

KeepTheTime.com
KeepTheTime.com
1 month ago
Reply to  Dan

Hi Dan, the Ronda 513 is a 3 hand movement without a date. If you have a Mondaine Big Date watch, it’s likely that the movement is a Ronda 509 or 519.

Dan
Dan
1 month ago

Oh yeah, I believe you are correct. I was repeating the numbers shown on a retailer’s website. Thank you for the clarification. I did poke around and saw an article talking about the date function behavior. It sounds like a normal thing. An odd choice for the maker in my opinion but a great conversation starter when today is the 34th. Ha!

Venus Caliber 178
3
0
Would love your thoughts, please comment.x
()
x