Why Ronda Movements
Why most of the Arvell catalog runs Ronda calibres - 5030.D, R150, Z60 and 715 explained.
Most of the catalog runs movements from Ronda, the Swiss movement manufacturer in Lausen. Four calibres:
Ronda 5030.D - the workhorse chronograph
Powers all Corvin and Regent chronographs: Swiss quartz chronograph, 13 jewels, 3-6-9 layout, ADD and SPLIT timing, ~54 months battery life. Chosen for precision and low ownership cost at scale.
Ronda R150 - the Swiss automatic
Regent Automatic references: 25 jewels, 28,800 vph, 40 h power reserve. Ronda's answer to the ETA 2824 platform, serviceable by any watchmaker.
Ronda Z60 and 715 - the quartz three-handers
Z60 drives the 48 mm Arden line, the 715 the Davos collection - proven quartz calibres with multi-year battery life and worldwide parts availability.
In evaluation: Ronda R01
Ronda returned to mechanical movements in June 2026 with the R01 series - and Arvell is actively evaluating the R01-01 for a future sports reference. The official numbers: 25 jewels, 25,200 vph (3.5 Hz), 80 hours power reserve, free-sprung balance, full-silicon escapement and hairspring (antimagnetic, temperature-stable).
Primary sources, directly from Ronda:
| Document | Link |
|---|---|
| Official calibre page R01-01 | ronda.ch |
| Technical sheet (PDF) | T2_R01-01_en.pdf |
| Instruction manual (PDF) | BA_R01-01_en.pdf |
Status: evaluation - no Arvell reference ships with the R01 yet. This section is updated when that changes (see Changelog).
Why not in-house?
An in-house movement at 250-1,400 CHF would force compromises in quality or price. Standard calibres keep every watch serviceable anywhere, forever - see Serviceability & Spare Parts.
Sources: Ronda calibre documentation · Arvell product data (internal)
Last verified: 2026-09-01 · Last updated: 2026-09-01 · Maintained by: Arvell Watches - Brand Knowledge Team
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