Environmental data, declared once. Received by every house.

Scope 3.1 covers emissions from purchased goods and services. In watchmaking it is the dominant share of a house's footprint, because most of the value is made outside its walls: cases, dials, hands, movements, straps, surface treatments. The difficulty is not the calculation, it is the data: it sits with hundreds of suppliers who share neither the same tool nor the same boundary. For want of anything better, houses fall back on ratios per franc spent, which do not move when a supplier genuinely improves its process.

Nothing. Suppliers get free access to the LCA platform, to their company's carbon footprint, to regulatory monitoring and to the guides. Only the houses fund the platform. The reason is simple: charging the party that produces the data means going without the data.

No. Every company is isolated within the platform. Your data is visible only to you, and to a house only if you have created a share for it. A resource that does not belong to you does not appear empty: it does not exist for you. This isolation is verified by automated tests re-run on every code change.

You decide, share by share. With partial sharing, the house receives the total footprint of the part and its breakdown by life cycle stage, without the individual lines. With full sharing, it also sees the calculation register, with factors, quantities and contributions: that level requires your explicit confirmation. No price information is ever asked of you. A share can be revoked at any time.

In Switzerland, on a dedicated server at Infomaniak, a Swiss host whose data centres are ISO 27001 certified. The platform itself is not certified: it applies measures aligned with Annex A of that standard. We prefer to say it that way rather than leave an ambiguity. Processing is described in the privacy policy, in accordance with the Swiss Federal Act on Data Protection.

No, and that is deliberate. Most watchmaking suppliers do not have one. The process is broken into short steps, every field states what it expects, and a help centre supports each module. What you need is not a carbon specialist: it is someone who knows the workshop, its material quantities, its processes and its energy.

An Excel questionnaire produces data that is only comparable to itself: every house asks its questions its own way, and the same supplier re-enters, dozens of times, figures that do not add up. A general-purpose platform, for its part, ignores the structure of watchmaking: its stages, processes and units do not match what a workshop can measure. Here the supplier declares once, in a format designed for its parts, and every house receives the same data.

26,954 factors, from two public sources: the Swiss federal administration's LCI database (FOEN 2025, 11,558 factors) and ADEME's Base Carbone (15,396 factors). Every calculation line states the factor used, its source and its reference location. Suppliers always see them; a house sees them with full sharing.