The modest increase largely reflects a rush by exporters to get their goods into the US before the tariff deadlines and retailers stockpiling for the same reason.
It offsets low consumer demand, which is being compounded by ongoing anxiety over US reciprocal tariffs which are expected to force up prices.
Average monthly growth in watch and jewelry sales so far, for the first seven months of this year, has been around 0.6 per cent, compared to over 5 per cent last year.
Sales in June were down 0.9 per cent, a figure that has been revised up from the original -1.7 per cent, based on actual transactions rather than estimates.
Exports of Swiss watches were up 6.9 per cent, largely driven by manufacturers front-loading their shipments to avoid 39 per cent US tariffs.