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The Seiko 5 “Sea Urchin” A Special Line for Divers with The Highest Precision Level

The Seiko 5 “Sea Urchin” A Special Line for Divers with The Highest Precision Level

Steve Powell
Seiko 5 SNZF15 Sea Urchin Review

Introduction to Model and Brand History

Seiko is a company with a long history. It was founded in 1963. Since then, the watches of this brand were considered the most reliable, stylish, and of the highest quality. During more than 50 years in the market, the company has made thousands of models that are appreciated by the real connoisseurs all over the world.

The main features of model watches:

  1. Automatic winding instead of quartz one
  2. Day and date window
  3. Water-resistance
  4. Shock resistance
  5. Unbreakable spring

The listed are exactly five main features which the number “5” in the collection Seiko 5 stands for.
Seiko produces watches for all occasions. One can find the most suitable model of any style and design. For example, there is a military line for those who love reliable and stylish military watches. Divers will definitely choose special water resistant watches. Seiko Vintage watches will be the best choice for those who love retro style.

Seiko Appears in Movies

The owners of Seiko watches can be proud to have this first-class product. The quality is proven by the fact that many celebrities appear wearing Seiko. The watches of the brand can be seen in numerous famous movies. For example:

  • Sigourney Weaver is wearing a Seiko Speedtimer in “Aliens”
  • Arnold Schwarzenegger appears with a Seiko H558-5000 in “Predator”
  • Roger Moore is wearing brand watches in “The Spy Who Loved Me”

Seiko Watch in Perdator

Seiko 5 SNZF15 Sea Urchin Features

Seiko 5 SNZF15 Sea Urchin is a special line for divers. It will be valued by those who love resistant and stylish watches. It is a so-called JDM or Japanese Domestic Model. These watches are produced in Japan. They are of a significantly higher quality than other products of the same brand produced in other countries. The main features of Seiko 5 SNZF15:

  • Case and bracelet made of stainless steel
  • Hardlex crystal
  • Automatic movement
  • 100m water resistance
  • Transparent case back
  • Automatic movement
  • Day and date displayed in the same window
  • Luminous markers and hands
  • No winding
Best Choice
Seiko 5 SNZF15 Sea Urchin
Seiko 5 SNZF15 Sea Urchin
This watch features everything that a diver needs
Seiko 5 SNZF15 Sea Urchin is a special line for divers. It will be valued by those who love resistant and stylish watches. It is a so-called JDM or Japanese Domestic Model.
Read Verified Customer Reviews

Design, Materials, and Movement Type

Design is similar to popular Seiko models in diver lineup. It has all the features that are necessary for a diver. The high resistance level is provided by a stainless steel case and bracelet of the Seiko 5 SNZF15.

The dial is luminous. It can be seen it even in the dim waters. The watch hands are large and bold. They are noticeable even in depth. The unusual Pepsi bezel makes the watch look merrier.
The watch is 100m water-resistant. It means that you can dive with Seiko 5 as deep as you want.

Crystal Type

Crystal type deserves special attention. For a budget line, Hardlex crystal is used. Hardlex is a proprietary of Seiko. For a functional watch, Hardlex is the best option. It does not add to the price a lot. It looks stylish and provides the highest resistance level to shock and scratches.

Seiko 5 SNZF15 Sea Urchin Crystal Type

Japanese automatic 7S36 movement is the heart of the functional watch. It is a 23-jewel movement that provides the watch with the highest precision level. There is a brief comparison of a standard quartz watch and a watch with 7S36 movement:

  • A standard quartz watch gives 1 tick per second
  • A 23-jewel movement watch, such as Seiko 5, gives 6 ticks per second

It means that Seiko 5 is six times more precise than any quartz watch.

In the case of Seiko 5, no manual winding is required.

Size and Weight

For those who are used to dress watches, Seiko 5 SNZF15 might seem big, although its 41mm diameter of the casing is not excessively big. It is a sports-watch rather than a dress-watch. With a crown, the watch is slightly bigger. The model is 12mm thick, which is average for this type of watch.

Seiko 5 SNZF15 not a lightweight watch. It weighs 165g. It is possible to feel weight immediately after picking up the watch. If you prefer something that doesn’t feel on the wrist, it is recommended to check other options.

Seiko 5 SNZF15 Size and Weight

Arrows, Bezel, Logo, and Other Things You Might Want to Know About

The watch is adorned with a crown. It is a distinctive feature of all the Seiko watches. A Pepsi bezel makes the model less strict.

Seiko 5 SNZF15 Sea Urchin luminous elementsThe markers and hands are solid. The markers are very thoroughly applied. The hands are adorned with a slight silver trim that gives them the noble look. The luminous elements look stunning on a dark blue dial which is so dark that on some photos, especially if you are looking at them at particular angles, it looks black.

The item components are properly proportioned; they match perfectly and look stylish. They make that classic design typical to all the Seiko models. The watch is cool and sporty. It is not pretentious. It looks nice with almost all kinds of clothes.

Case and Strap

Stainless steel is the material used for the Seiko 5 SNZF15 case and strap. The strap width is around 20mm. It looks solid in comparison with Seiko dress watches models. You can fasten it with a fold over clap. A safety hatch is also available.

The bracelet matches perfectly with the case. It is extremely easy to size, and you can wear it immediately after you have received the watch. It might look a little bit flimsy for this watch model, but the bracelet is functional and suitable for the purpose. It can be replaced by some other options. The watch looks great with a nice leather strap. NATO straps are perfect for the watch.

The backside of the case is transparent. You can see the inner of the watch and observe all the mechanisms movements. It is one more feature that distinguishes Seiko watches.
Seiko 5 SNZF15 Sea Urchin Review Case and Strap

No Winding Is Needed

This watch doesn’t have a winding feature. To wind it, shake it for around 15 seconds. Then, you can wear the watch, it will wind itself while you are moving. It is very convenient for active people. There is no need to worry that you might once forget to wind your watch.

Are There Drawbacks?

Seiko SNZF15 has some drawbacks.

Some customers believe that another bezel type would be better. For such users, other models are available. Pepsi bezel is a unique detail that makes the watch different from other models.

One more drawback is the older 7S36 movement. The watch doesn’t feature a hacking option, which means that when you are trying to set one hand, the other hand stops. It is complicated to set the time precisely without the hacking function. In sports, it might be important.

The crown is too small, and the finish is not smooth enough.

Final Impressions and Alternatives

Seiko 5 SNZF15 is one of the most popular and loved models of this brand. Younger people love it because of the unusual Pepsi bezel. It distinguishes the watch from other models.

Seiko 5 SNZF15 is an amazing watch. The price is reasonable. The item’s functionality and accuracy are excellent. Even if there are some drawbacks, they can be excused, especially if you consider the price.

Alternatives to Purchase

Seiko 5 SNZF15 Sea Urchin Seiko 5 SNZF15 Impressions and Alternatives

For those who want to check alternatives, there are several suitable models:

Seiko 5 SNKL43 is a watch of Seiko budget series. It is made of stainless steel. It has the same mechanical movement (7S26) and Hardlex crystal protecting the dial. Like Seiko 5 SNZF15, this model can be neither wound nor hacked in a manual way. It is not an option for diving, and its size is smaller: just 37mm. This watch is not water-resistant. For those who are not interested in sports, particularly in diving, this function might be not crucial.

Seiko 5 SNKL43 review

Seiko 5 SNZF15J2 is another Seiko model worth your attention. It is a JDM, a Japanese Domestic Model. It is of higher quality than those models that are made in other countries. It is a sports watch. It has all the features relevant to a sports watch, including 100m water resistance. The case and the strap are made from stainless steel. The rest of the features are similar to Seiko 5 SNZF15:

  • 100m water resistance level
  • The crystal that protects the dial is made from Hardlex, a proprietary glass solution
  • Automatic winding and the absence of hatching
  • The model looks very impressively for a budget watch. It is loved not less than Seiko 5 SNZF15

Seiko 5 SNZG15K1is one more watch model that deserves consideration. It is significantly cheaper than other models. This watch is of much better quality than similar variants for the same budget level. It has a superior timekeeping function. The finish is resistant to the influence of external factors. The quality can be compared to that of the Swiss watch models.

A stainless steel case is accompanied by a nylon strap. It creates a very stylish look. The crystal is rather mineral instead of the standard Hardlex for Seiko watches of such level. A 12/24 hours display is also a special feature of this model. A pull/push crown makes this model different.

See Also

The size is slightly bigger than that of the other models, but the difference is not too significant. The watch is 40.5 cm big without the crown. With the crown, its size reaches up to 43 cm.

Seiko 5 SNZG15K1 review

This model has five characteristics that make a part of the Seiko 5 series brand:

  • Automatic winding
  • Day and date display
  • Water resistance (100m in this case)
  • Shock and stress resistance
  • Unbreakable spring

Seiko 5 SNK793 should also be reviewed. A stainless bracelet and body are typical for this line. The transparent back side allows seeing the inside of the watch. A blue sunray background with a day and date window makes the watch convenient to use. The water resistance level is up to 30m. It is suitable for swimming. It can also be used when snorkeling. This watch cannot be used for scuba diving.

Hands and markers are luminous. You can see them in water or in darkness.

Seiko 5 SNK789 with matte white dial looks stunning. The stainless steel bracelet and body are resistant, and they provide the watch with a high durability level. A self-wind feature is typical for all the watches of this line. The 30m resistance makes it suitable for swimming and snorkeling. For scuba diving, the water resistance level is not sufficient.

Seiko 5 SNK789 review

How to Select Your Seiko

You can select a Seiko 5 model for personal use or as a gift. In the process, you might face one issue. There are a lot of watches produced by Seiko. It is complicated to find an item that suits you. A short guide will be helpful in selecting the right model with the necessary features within your budget.

Your watch needs to comply with several requirements:

  • The price is affordable
  • The style is suitable
  • The features are essential

Seiko Watches Based on Price

Based on the price, Seiko watches can be divided into several categories:

High-end watches: they have superior features and design. They are very expensive. If you love high-end watches, you should pay attention to the Grand Seiko line. Such models as SBGA011 “Snowflake” or the SBGH001 “Hi-Beat” are the most popular and well-known.

Seiko SBGA011 review

The Snowflake has a very original design. Its dial seems to be covered in a light snow layer. Sapphire crystals and other exclusive features like titanium cases and bracelets distinguish high-end watches. These watches are not delivered in a carton packaging. Titanium is used for the model. It resembles a Rolex watches but has a cleaner look, which makes it more comfortable to use.

Mid-range watches: these watches are for people who cannot spend thousands on a watch. These models still feature sapphire crystals, but their design is simpler. The functionality of all the Seiko watches is just perfect.

Budget watches are bought most often. They fit almost any budget. These models usually feature a stainless steel case and bracelet or bracelets made from other materials. The crystal is made from Hardlex glass, which is scratch-resistant. It gives a watch the original and stylish look that distinguishes the Seiko models.

You Can Find Seiko in Several Following Styles

Based on the style, Seiko watches can be divided into several categories:

  • Gender watches: a model for women, men, or unisex
  • Dress watches
  • Field or military watches
  • Sports watches, with diver watches having a special place in the series

Features of Seiko Watches

Features of Seiko 5 SNZF15 Sea Urchin WatchesEach Seiko 5 has five main features:

  • Automatic movement
  • Date and day window
  • Water resistance
  • Durability
  • Unbreakable spring

With a consideration of all the details, it is easy to select the best Seiko 5 watch. Make sure it fits your daily image and has the needed functionality, but without excess. The price of a good model should be within the budget, particularly your own one. Time and experience show that the owners of Seiko watches are always satisfied if the item is selected properly.

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