A historical technology concept can resemble something familiar today without being an early retail version of it. Lisa Krohn’s wrist computer is more interesting when its status remains visible.
Keep the word concept in the description
Cooper Hewitt’s account identifies the 1988 design as a concept model exploring a wearable combination of computing and communication. The museum describes proposed functions and a form intended to relate closely to the wearer’s body.
Separate those intended functions from evidence of an operating product. A model can communicate a design proposition without demonstrating that every proposed technical capability was realised in the object.
Look beyond resemblance to a current device
Ask how the design imagines touching, wearing and moving the object. The comparison with later technology can be a starting question, but it should not replace the historical proposal with a story of inevitable progress.
In your collection note, give the designer, date, model status and one documented design question. That keeps the object anchored in its own context. It becomes evidence of how someone imagined a relationship with technology, rather than a convenient illustration for a claim that the future had already arrived.

