I was in Switzerland from July 15 till July 27, Paris from July 27 till 31 then went back to Switzerland and stayed until Aug 4. Have visited Hermes stores in Zurich, Luzern, Bern, Basel, Gstaad, Lugano, St Moritz, Laussane and Zurich airport. I would say SA in St Moritz is the nicest and they are happy to show whatever they have in the stock. They did say B/K may come in from time to time but I wasn't that lucky when I dropped by that day. Instead I bought Lindy, Picotin and Garden Party (they usually have a lot stuff in Etoupe, Gold and Black to choose from). Lugano had a good collection of Tutti Fruttie when I was there but nothing much for other stuff. Scoring a B or K is tough and the SA is somewhat unfriendly. Go and find the male SA as he offered to ship the items to Zurich store for me so I don't need it to carry it all along the trip. I called Basel and Laussane store before I go and SAs on the phone are quite nice as well. Got a GP30 canvas in Basel which I love. Gstaad is close to Interlaken with not that heavy tourist traffic during summer time. They have Picotin, Lindy, GP in stock but B/K is usually prioritied to regular customers before they can offer to tourists. I met this lovely young SA who told me they had no B/K at the moment otherwise they would like to offer to me given I bought quite a few things too. I don't like the Bern store. You can call them to check stock but don't buy too many leather goods in Swizterland already before you go. They tend to check your record before they decide to sell one more bag to you. B/K is long shot as I have seen their regular customers visiting them while I was there. These customers are buying everything...and look quite dramatic to me. Luzern is a franchise store (just like airport) with very limited stock. Last not definitely not the least is the Zurich store. When I first checked in, there was nothing except quite a few Bearn and Kelly wallets. Later when I finished up my trip and went back to collect the things they shipped from Lugano and St Moritz, they became quite nice as I bought so many things lol...they always always have B/K in stock at the back but was prioritized to the waiting lists for frequent but not necessarily local customers. They did offer me a K35 in Bleu Nuit and K35 in Raisn all with GHW but 35 is just way too big for a petite girl like me. I turned down the offers but I would say if I went back once or twice more, I may really get a dream bag there. Zurich airport has few bags in stock but may have a few beautiful clutches to choose from (I have seen blue sapphire medor in smaller size and Jige clutch in gold color etc).
I didn't go to Geneva at all as I think would be a waste of time given the store is well-known to all the wealthy locals and tourists.
To summarize, you can call St Moritz, Basel, Gastaad, Bern and Laussance stores to check their stock before you go. But B/K is difficult. You can show your love of the brand at Zurich store the first try and visit them a few times to score a B/K they have hidden at the back.
Anyways, I got lucky in Paris FSH coming home with K28 Togo Noir GHW and Bolide 27 Epsom Rose Japiur! I would say mid-July to early-Aug is not bad as factories are closing down for summer holiday so as to feed stores quite a lot of stock to sustain until factories reopen lol.