The Seiko-model "GoldFeather" is around since 1960. It was an important innovation and back-then the world thinnest 3-hand watch -- it was a demonstration of the ambitions of the rising watchmaker from Japan and a First in a series of relevant innovations. The GoldFeather was usually made of steel, some in gold-plated (14K gold-filled) and just very few in 18K-solid gold.
I can see here a horological & industry-historical important watch (we have one in our museum: *klikk) and it seems I am not alone: Credor (the Seiko-branch in charge of fine dresswatches and highest artisanal skills) uses the name GoldFeather today as well and essential design-elements of the vintage predecessor in their current models, too.
Even more, the movement used today is the iteration of the 1968-introduced cal68 -- introduced with one of the most important watches in the history of Seiko on its way to catch-up with Swiss watchmaking: *klikk.
Once the GoldFeather was the Worlds Thinnest Three-Handwatch... now it comes with just 2 hands (ref GBBY980) but is still handsome.
