Valuing Watches, Cars and Property Honestly

Listed assets have a price every second. Physical assets have a price when someone pays it. Everything in between is an estimate, and a net worth that includes physical assets is only as honest as those estimates.

The rule: every valuation carries a date and a source

A number without a date is a guess dressed as a fact. In Lait every physical asset shows what it was valued at, when, and by which method: purchase price, your own manual figure, or a market estimate. The history of those points is kept, so you can see a watch that was valued at 8,000 in March and 7,200 in September and know both were real readings.

Watches

The secondary market for watches is liquid enough to price: Chrono24 lists tens of thousands of pieces with asking prices, and for common references the spread between ask and sale is known. Lait takes the reference number, pulls comparable listings, discards outliers, and reports a median with the sample size. A Submariner has hundreds of comparables and a tight estimate; a limited dial has six and a wide one, and the estimate says so. Box and papers, condition and service history move the figure; you can set them.

Cars

Used cars in Spain did something unusual after 2020: many models held or gained value for three years while new supply was constrained. That has largely normalised, but it means a purchase-price-minus-depreciation formula was wrong for that whole period. Lait prices a car from current used listings for the same model, year and mileage band, and shows the purchase price next to it so you see the real curve rather than a textbook one.

Property

The estimate comes from a €/m² table by neighbourhood and a web search of listing portals (Idealista, Fotocasa and the like). Listings are asks, not sales, so Lait applies a haircut and shows a range. The cadastral value is a separate field: the wealth tax values property at the highest of it, the value checked by Hacienda and the purchase price, never at the market estimate, and you can record your share of the title and whether you hold bare ownership or a usufruct. And the mortgage is linked to the property, so what you see as equity is the estimate minus what you still owe.

Startups and private stakes

The hardest case. A stake in a private company is worth what the last round said, discounted for how long ago that was and how far from a liquidity event you are. Lait offers an AI-assisted estimate built from the company's own facts (sector, stage, round size, revenue if you have it), and labels it as a single estimate from one model. It is not a comparable-based price, because there are no comparables, and the label says so.

Why not just leave them out?

Because they are real. For most people in Spain the home is the largest asset they own and the mortgage the largest debt, and a net worth that ignores both is not net worth, it is a brokerage balance. The answer to "these numbers are soft" is not to hide them but to show how soft they are: date, source, range, sample size.

Revalue what matters twice a year, keep the history, and let the chart show you the truth rather than the purchase price.