Seiko 5 Automatic SNK80X Series

The legendary Seiko 5 SNK80X series provides some of the cheapest mechanical watches on the market. For less than $100 you get a great military-style field watch with one of the following dial colors:

  • Black (SNK809)
  • Blue (SNK807)
  • Khaki (SNK805)
  • Beige (SNK803)

The watch is protected by a lens made of hardlex. These timepieces are rugged, functional and very easy to read thanks to their eye-catching design. They are powered by the Seiko 7S26 automatic movement featuring a day-date complication with 41 hours of power reserve. It can be admired through the transparent case back.

  • Ref: SNK809, SNK807, SNK805, SNK803
  • Diameter: 37.00 mm
  • Thickness: 11.00 mm
  • Lug width: 18.00 mm
  • Caliber: Seiko 7S26

The Seiko black SNK809K2. Credits : eBay listing.
The Seiko black SNK809K2. Credits : eBay listing.

The water resistance is 30m meaning it can handle splashes, we would not recommend it for diving though. The proportions of this watch are great, with a 37mm diameter and an 11mm height it is very comfortable to wear and unobtrusive. This Seiko model can therefore be seen as an affordable Hamilton Khaki Field alternative.

It looks very cool on a NATO, the 18mm lug width makes it easy to find alternative straps as well. At this price it's pretty hard to beat, we can therefore consider that the value it's losing over time is very low, so it's holding its value pretty well compared to other more expensive watches!

The military looking khaki Seiko SNK805, sold on ebay by military.inc
The military looking khaki Seiko SNK805, sold on ebay by military.inc
Here are 8 suggestions on eBay for the Seiko 5 Automatic SNK80X Series:
(scroll horizontally for more )


This article focuses on chronograph watches that have been in space and that can be considered as Omega Speedmaster alternatives.

The Omega Speedmaster is a legendary watch. It's a masterpiece that all watch enthusiasts want to have in their collection. The Speedmaster Professional was created in 1957 and ...

You will find below a range of affordable mechanical field watches that are worth considering and that are immediately available on eBay.

A lot of the devices we use in our day to day lives have been first developed for military applications, watches are no exception. The army extensively requested the development ...

Watches that can be considered as affordable alternatives to the Rolex Explorer.

Today we are focusing on a well-known watch from a mythical Swiss manufacturer, the Rolex Explorer, for which we will offer you some affordable alternatives. Because yeah, at a ...


Join us!

Be part of the conversation