Manufacturer | Ronda |
Caliber Number | 6004.B |
Movement Type | Quartz, battery-powered |
Lignes | 11.5”’ |
Diameter | 26mm |
Casing Diameter |
25.6mm |
Height |
3.3mm |
Jewels | 5 (gold plated / 1 jewels (nickel plated) |
Frequency | 32,768 Hz |
Battery Cell Number | 373 (SR916SW) |
Claimed Battery Life | 40 months |
Battery EOL? |
Yes (Swiss made version) |
Hand Count |
3 |
Hand Sizes |
1.2mm / .70mm / .20mm |
Functions | Central hours; central minutes; small seconds at 6:00, big date at 12:00 or 6:00 |
Hacking Seconds? | Yes |
Quickset Date? |
Yes |
Country |
Swiss made or Swiss parts (assembled in unknown) |
Known Models |
Tag Heuer Formula 1 Grande Date (Please add your watch to the comments below…) |
Ronda caliber 6004.B is a quartz movement with a small seconds subdial and a big double-digit date complication.
The 6004.B is part of the xtratech family of calibers and Ronda considers it to be a repairable metal watch movement.
Swiss Made VS Swiss Parts:
According to the Ronda website, there are two versions of this movement: a Swiss parts version with 1 jewel and nickel plated finish; and a 5 jewel version with gold plated finish.
The Swiss made version is listed as being equipped with a low battery indicator (EOL), but the Swiss parts does not.
Battery Information:
When the battery is low on the Swiss made version, the seconds hand will skip a few seconds (this is the EOL mentioned above).
The replacement battery is a number 373 (aka SR916SW).
Tip: Pulling the crown out will “hack” the movement and also serves as a power saving function while the watch is in storage. Ronda states that this will reduce the power consumption by about 70%.
Additional Resources:
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