Brand | Ronda |
Caliber Number | Ronda 5050.B |
Type | Quartz |
Size | 12 1/2”’ x 4.40mm thick |
Diameter | 28.60mm |
Battery Cell Number | 395 |
Claimed Battery Life | 54 months |
Jewels | 13 (gold plates / 6 jewels (nickel plated) |
Hacking | Yes |
Functions | Hours, minutes, small seconds, 1/10 seconds, big date at 6:00, chronograph central seconds, 30 minutes counter, 12 hour counter |
Country |
Swiss parts, assembled in unknown (comment below) |
Known Models |
Luminox A.1148 Tony Kanaan |
The Ronda caliber 5050.B is a quartz chronograph watch movement.
Two Versions of 5050.B:
According to the Ronda website, there are two versions of this movement: a Swiss parts version with 6 jewels and nickel plated finish, and a 13 jewel version with gold plated finish.
Resetting the chronograph to 12:00
If your chrono hand isn’t lining up, try the instructions in the video below.
Additional Resources:
Trending Comments
Slava Caliber 2427
Lum-Tec gave up trying to fix my C2 with this movement, now I'm trying to…
Seiko Instruments (SII, TMI) Caliber NH34
Hi mrdibujante, from the specs chart above: "Rotor Direction: Bi-directional (Magic Lever)" indicates that it…
Citizen Caliber 8210
Es más preciso de lo que anuncia. Unos 12 segundos se adelanta al día, para…
Miyota Caliber 2035
Thanks.
Ingersoll Caliber 520
Mine is weird. It doesn't like to be fully wound. It looses seconds if I…
Active Caliber Listings
My apologies, I missed that somehow.
Hi Gary L, you are correct. Please see the SW300-1 here and the SW330-1 here.
Hello everyone, I think the SW300 is Sellita’s version of the ETA 2892-A2. The GMT…
As far as I know, this caliber was produced in the mid-eighties to the mid-nineties
Hi, I am new here. I am just starting to go into movements and tinker…