Estimated costs (engineering + unit) of the two improvements
| Change | One-off cost (NRE) € | Δ BOM / watch € | Main NRE items |
|---|---|---|---|
| 1 – Replace charging pins with Qi charging | 27 000 – 34 000 | +0.20 | • Insert or new mould for the case back (8–12k) / • Internal plastic support for the coil (2–3k) / • New PCB version + prototypes (5–7k) / • Firmware / charging tests (≈3k) / • Partial CE recertification (4–6k) / • Mould for the USB-C charging base, if included (5–6k) |
| 2 – 5 ATM sealing (O-ring + LOCA) | 19 000 – 22 000 | +0.25 | • Insert or remachining of the mould for the O-ring groove (3–5k) / • “Vacuum → pressure” bench for the final production stage (≈15k) / • Small torque/gluing jigs (1–2k) |