Ronda 5030.D caliber vs Ronda 5040.B caliber: specs compared
Updated 05 September 2026.
2
specs differ
Ronda 5030.D caliber and Ronda 5040.B caliber differ on 2 specs: casing diameter, calendar / layout.
| Spec | Ronda 5030.D caliber | Ronda 5040.B caliber |
|---|---|---|
| Maker | Ronda | Ronda |
| Size | 12 1/2 ligne | 12 1/2 ligne |
| Casing diameter | 28.00 mm | 28.60 mm |
| Movement height | 4.40 mm | 4.40 mm |
| Frequency | 32,768 Hz quartz | 32,768 Hz quartz |
| Jewels | 6 or 13 | 6 or 13 |
| Winding | quartz, battery 395 | quartz, battery 395 |
| Calendar / layout | chronograph, small seconds at 3, 12h at 6, 30min at 9, date at 4 | chronograph, small seconds, 1/10s, 30min and 10h counters, big date |
| Hand fitting | chronograph, sub-dial and centre hands | chronograph, sub-dial and centre hands |
| Stem | Ronda 5000-series stem | Ronda 5000-series stem |
| Power reserve | battery 395, up to 54 months | battery 395, up to 54 months |
Questions and answers
How do Ronda 5030.D caliber and Ronda 5040.B caliber compare?
Ronda 5030.D caliber and Ronda 5040.B caliber differ on 2 specs: casing diameter, calendar / layout.