Vintage Seiko Square Quartz Day-Date Watch – 0843-5010 – 1985

This is a really strong example of mid-80s Japanese design from Seiko, a period where the brand was quietly producing some of the best everyday quartz watches on the market.

The square stainless steel case has that unmistakable 1980s profile — sharp, angular, and very wearable — paired with a clean silver dial featuring a subtle brushed finish that gives the watch depth without feeling busy. Applied baton indices and slim hands keep the design balanced and legible, while the framed day-date window at 3 o’clock adds practical functionality without disrupting the overall symmetry.

Seikos quartz movements from this era are famously robust, and this one is no exception. It’s the kind of watch that was built to be worn daily, not babied, which is exactly why so many of these have survived decades of use and still perform reliably today.

The original bracelet completes the look and keeps everything period correct. While it shows light wear consistent with age, it suits the case perfectly and reinforces the watch’s authentic vintage character. Its got a few minor marks on the crystal and the dial has some dirtiness, it would be great as an everyday watch.

A solid choice for anyone looking to add a clean, no-nonsense 1980s Japanese watch to their rotation.