Seiko SNK805: Price, Features, and Specifications

The Seiko SNK805 is an automatic watch belonging to the prestigious Seiko 5 series, known for its military-inspired design and exceptional value for money.

With a stainless steel case, a military green dial, and a matching nylon strap, the Seiko SNK805 is the perfect companion for everyday wear, demonstrating that style and practicality can go hand in hand.

If you’re looking for a watch that serves as both a fashion accessory and a reliable tool, the Seiko SNK805 could be the perfect choice for you. Here are all its features.

Seiko SNK805
  • Military style
  • Hardlex crystal
  • Japanese automatic movement
  • 40-hour power reserve
  • Water-resistant


‚úö Seiko SNK805 – Specifications

BrandSeiko
ModelSNK805
SeriesSeiko 5
MovementJapanese automatic
CaliberSeiko 7S26
Power Reserve~ 40 hours
Precision+20 ÔĹě -15 seconds per day
Water Resistance3 ATM (30 meters)
ComplicationsDate and day of the week with quickset
Crystal TypeHardlex
MaterialsStainless steel case and nylon strap
Case Diameter37 mm
Case Thickness11 mm
Strap Width18 mm
Lug to Lug Length43 mm
Weight59 grams
Dial ColorMilitary green
Strap ColorMilitary green

‚úö History of the Seiko 5 Series

The Seiko SNK805 is one of the most popular Seiko 5 models, as it perfectly encapsulates the philosophy of the series: to offer quality automatic watches at an affordable price.

The models in this series have a rich and fascinating history that dates back over half a century, as it was in 1963 when the famous Japanese watch brand released the first Seiko 5.

Seiko’s objective at that time was to make quality automatic watches more accessible, which meant competing with Swiss brands of the era.

seiko snk805
There has been much debate about the meaning of the “5” in the Seiko 5 emblem, although the general consensus is that it derives from the five key features the brand aims for in each watch of the series:

  1. Automatic movement with Diashock protection: All Seiko 5 watches feature an automatic movement with Diashock protection against shocks.
  2. Water resistance: They are also water-resistant, making them suitable for everyday wear.
  3. Day and date display: In addition, they must have a day and date display, a practical feature for daily use.
  4. Crown at 4 o’clock: The crown on most of these watches is positioned at 4 o’clock, providing additional comfort.
  5. Durable case and Diaflex spring: On the outside, these watches have a robust case to withstand wear and tear, while internally they incorporate quality components, such as the Diaflex spring, made of a special unbreakable alloy.

These characteristics have remained constant in the Seiko 5 series over the years, although designs and technologies have evolved.

Over the years, the series has added a wide variety of models, each with its own style and personality, but all maintaining the five key characteristics that define them.

Today, the Seiko 5 series is a testament to Seiko’s commitment to innovation, quality, and affordability, and it continues to be a popular choice for watch enthusiasts worldwide.

‚úö Design and Features of the Seiko SNK805

The Seiko SNK805 is an automatic military-style watch with an elegant and discreet aesthetic. It also features some noteworthy components that are worth examining separately.

‚ě§ Case

The case of the SNK805 is made of stainless steel, providing exceptional resistance and durability. It also has a satin finish, giving it an elegant and understated look, perfect for any occasion.

It also features a transparent or exhibition case back, allowing you to see the internal mechanism in action with all its intricate details.

In terms of dimensions, with a diameter of 37 mm, this case has a moderate size that comfortably fits most wrists. It also has a thickness of just 11 mm.

Seiko SNK805 Case

 

‚ě§ Crystal

The crystal is of the Hardlex type, a patented hardened mineral crystal by Seiko that is significantly more scratch and impact resistant than standard mineral crystal. This crystal provides excellent visibility and protects the watch dial from damage.

Seiko SNK805 Crystal

‚ě§ Crown

The crown is located at 4 o’clock, a distinctive feature of the Seiko 5 series. This crown position provides additional comfort and prevents it from catching on the wrist or clothing. It is securely set and allows for easy adjustment of the time and date.

‚ě§ Strap

The strap of the SNK805 is made of military green nylon, matching the watch dial. It is durable and comfortable, and its neutral color makes it versatile to pair with a variety of clothing styles.

It has a width of 18 mm, which is a fairly common size, making it easier to replace if you prefer a different style or material.

‚ě§ Movement and Precision

As for the movement or internal mechanism, the SNK805 uses the Seiko 7S26 Japanese automatic caliber. This movement has a power reserve of approximately 40 hours and a precision of +20/-15 seconds per day.

It is worth mentioning that this movement does not have manual winding or hacking functions, but its reliability and precision are impressive for such an affordable watch.

Seiko SNK805 Movement

Seiko SNK805 vs SNK807 and SNK809

The SNK805, SNK807, and SNK809 models are all part of the Seiko 5 series and share the same features. However, there are some subtle differences that may influence your buying decision.

Seiko SNK809

Firstly, the Seiko SNK807 has a blue dial and strap. This color may be a more versatile option for those looking for a watch that can be paired with various styles.

The other features, including the stainless steel case, automatic movement, and water resistance, are the same as those of the SNK805.

On the other hand, the Seiko SNK809 has a black dial and strap, giving it a more classic look. This color can be an excellent choice for those seeking a watch that can adapt to both formal and informal situations.

Like the other two models, the SNK809 features a stainless steel case, automatic movement, and water resistance up to 30 meters.

In summary, the main difference between these three models is the color of the dial and strap. The choice between them will largely depend on your personal preferences and how you plan to use the watch.

‚úö Price and Reviews

The price of the Seiko SNK805 may vary depending on the seller and location, but it is generally available for less than ‚ā¨100. This makes it an excellent option for those seeking a high-quality automatic watch without breaking the bank.


In conclusion, the SNK805 is a high-quality automatic watch that offers excellent value for money. Its robust design and reliability make it ideal for everyday wear, while its affordable price makes it accessible to a wide range of consumers.

Whether you’re looking for your first automatic watch or simply want to add a new timepiece to your collection, the SNK805 is a worthwhile choice to consider.


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Last update of links and images on 2023-09-25.

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