Today, we love to fawn over super-slim watches — hell, any new watch coming in at under 10mm feels especially miraculous. But decades ago, when watches were significantly smaller and simpler than today’s mechanical watches, a slim profile was the norm, not the exception. Even so, there were still some models that were exceptionally thin. And as is usually the case, they come at a much lower price than their modern counterparts.
Seiko Goldfeather

What we like: One of the classiest watches Seiko has ever made, the Goldfeather was a super-thin hand winder from the 1960s. It features a “gold-filled” case and a 60M movement by Seikosha (a former Seiko subsidiary). Like most other vintage Seikos, given its super-slim proportions, its asking price — just under $350 — feels like a steal.
From the seller: Original Seikosha movement; perfectly functioning with good accuracy.
Creation Gent’s Watch

What we like: Creation seems to be one of the many, many long-forgotten watch brands of the 20th century. But while time may not have been friendly to the marque, it seems to have given this simple, super-slim three-hander a pass, as the hands, dial and case seem to be in great condition.
From the seller: Chrome-plated case is in very good condition with some signs of wear, particularly on the sides of the case. Silver dial is in very good condition, showing a scratch between five and six o’clock. Luminescent elements of the Arabic numerals and hands show signs of age.