It should be if it's in Sony's Headquarters! From former Walkman Designer's, Akiraa Tanaka's Twitter Feed https://x.com/akiraa_tanaka "This is the first-generation Walkman Room, built at the former Shibaura Tech (now the head office), and the second-generation Walkman Room, built at Shinagawa Tech after the relocation. Currently, a third-generation Walkman Room has been established at Osaki Tech, where the Walkman design team is based, and it is used for interviews and other purposes." Even the chairs look like a little like the Walkman Logo.
Indeed, although for a large collection it's unlikely all have been refurbished. That's one of the downsides of large collections: most will be for display only. It is pretty impressive given it looks to be SONY-only. However to me it seems focused on particular types of walkmans, rather than having everything. What I do like is how it's organized: that's very well done. But as far as the how impressive it is, have to say Kent's one is way more impressive than this. EDIT: Given what's stated in post below, the collection definetely is impressive. Was unaware of the existence of such devices.
These are the companys official Sony Walkman Rooms their archives , the collection is unique because contains prototypes like the transparent Sony WM-2 and WM-F2 the only known blue WM-2 an ultra rare white or pearl white Hokkaido WM-2 a gold TPS-L2 and so on. There you can find the BM-12 the first ever walkman prototype , they have even the schematics for it. The most emblematic models are displayed in a special way at the center of the room (second photo). The cabinets below should contain the walkman boxes and related material. There are all type of Sony walkmans cassette , discmans , internal memory anything , probably not every model ever build and variant but this is a dedicated place to Sony walkman history, a lot of interviews are taking place there with walkman designers over the years for various events like new walkman presentations , anniversaries etc.
That would literally be a full time job, like painting the Sydney Harbour Bridge. Once you had serviced the last one, you would have to start on the first one again!
