Are you planning on buying the Seiko Flightmaster SNA411?
Before you do, there are a few details you need to be aware of. We’ll be running through everything you need to know about it and more.
The SNA411 is a pretty cool watch, but before we get into the good stuff, it’s only right that we look at its specs.
When you look at the SNA411, you might be intimidated by its dial. There’s a multitude of rings around its display, each with its own functions. It looks hard to read but if you take a good look, they’re easy to workaround.
There are large, circular markings that replace numerals. Around them is a ring with the markings for the minutes passed, allowing you to easily track time. The circles are large and full of LumiBrite, so you’ll be able to tell the time in the dimmest environments.
In the 3 o’clock position, there is a calendar, which is useful. That being said, the calendar only comes with the day’s date. This isn’t too much of an issue as the vast majority of watches out there are like this.
You’ll see 3 sub-dials. Two of them are for the watch’s chronograph, and let you measure up to 60 minutes and 1/5th of a second.
The bezel has a slide rule which any pilot would find handy as it helps with calculations. If you’re not a pilot, the slide rule adds a cool design element to the watch.
The dial is completely black with the watch’s hands being off-white. There’s a pop of colour with the bright yellow of the second hand.
The SNA411 is a product from Seiko, which means it has a Hardlex crystal window. Hardlex is Seiko’s version of mineral glass and is arguably stronger. It’s engineered to be shatter-resistant, so you’re in very good hands.
The case is made of quality stainless steel. This makes it extremely durable and keeps corrosion at bay. You’re bound to drop the watch a couple of times but thanks to the stainless steel, the case won’t get banged up.
The case isn’t too big or small. It measures 1.65 inches (42 mm) across which makes it perfect for regular sized wrists. The case isn’t too thick either. It’s the perfect width at 0.511 inches (13 mm) so you’ll be able to wear it without working your wrists out.
The case has a range of bezel indents which makes it robust. The fact that it has a crown and two other buttons on the side adds onto its design.
While on the topic of its crown, it’s fluted so it has an extra grip.
In terms of its strap, we don’t have much to say. It’s made from stainless steel like the rest of the device, so the watch comes with a bracelet.
The bracelet has 4 links and a push to release button, so getting the watch off you isn’t a hassle. It doesn’t just have a push-to-release button, but it comes with a safety clasp.
The bracelet has a 0.811 inches (20.6 mm) width which makes it just the right size.
As a pilot, you can always trust your handy SNA411. The watch is a Japanese Quartz. Quartz watches are the most accurate watch types out there.
It comes with the Quartz 7T62 mechanism which is chronograph oriented.
The 7T62 allows the centre chronograph to tick 5 times per second which is something seen in Seiko’s more expensive chronograph watches.
At the 6 o’clock position you’ll see an alarm sub-dial. To be frank, the watch’s alarm isn’t the loudest, but it’ll wake you up.
The alarm also functions as a dial that can track the time in a separate time zone. This is pretty handy, especially if you’re flying somewhere.
Quartz watches are known to be very accurate, as mentioned. The SNA411’s time may differ by one or two seconds every 2-3 months which is impressive.
The fact that it’s a Japanese Quartz also helps with its accuracy as they’re known to be the most thoroughly built.
The majority of pilot watches on the market are water-resistant. This is especially the case with the SNA411. If your aircraft ever crashes into the sea, your watch would survive the ordeal as it can last up to 660 feet (200 m) underwater!
Seiko advises you to not dive with it on. According to them, it’s only fit for swimming and scuba diving.
The fact that its dial is full of large, circular markings that have luminous paint on them helps with underwater use as the watch will light up when swimming.
Of course, it comes with a rotating bezel. However, we’re not too sure about the number of clicks it has. If we had to, we’d speculate that it has around 120 clicks.
It’s waterproof as it has a screwed-down crown and tightly screwed case. The fact that it’s made from quality stainless steel helps as you’ll never have to worry about corrosion.
As you can see, the SNA411 is a pretty great watch and is a pilot’s dream. However, you may want to look at a few alternatives before you take the leap.
Read ahead as we run through a couple of good ones.
Like the SNA411, the SND255 is pretty water-resistant. However, the SND255 can only last 330 feet (100 m) underwater. Similar to the SNA411, Seiko advises that you don’t dive with it on.
The watch is water-resistant as it comes with a screwed-down crown and a completely sealed back. It has a rotating bezel which helps with underwater use. However, it’s not bidirectional, only unidirectional.
If you look at its display, you’ll see LumiBrite all over it. This helps when you’re deep underwater.
Case & Strap
The watch’s case is made from stainless steel. It isn’t that large, like the SNA411. The SND comes with a case that measures about 1.61 inches (41 mm) across.
It has a thickness of 0.39 inches (10 mm) which is much thinner than the SNA411’s.
If you take a look at its bezel, you’ll see a slide rule which helps with calculations.
Its strap is made from stainless steel too, with a deployment clasp.
The dial is a stunning blue. It has cylindrical shapes that replace numerals. In the 3 o’clock position you’ll see a calendar, but it only reads the day’s date.
The cylindrical markings are full of LumiBrite, so you’re in good hands.
While the SNA411’s seconds’ hand was bright yellow, the SND’s is orange.
There are 3 sub-dials, of which two are dedicated to the chronograph and one to another time zone.
Of course, it wouldn’t be a Seiko watch without a Hardlex window.
Like the SNA411, the SND is a Japanese Quartz watch. Instead of the 7T62, it has the 7T92 which allows for a chronograph that reads to 1/20th of a second.
The watch is pretty water-resistant. It's resistant up to 330 feet (100 m).
This is due to its screwed-down crown and sealed back.
Of course, the watch is completely made from stainless steel which prevents corrosion.
Case & Strap
The watch comes with a stainless steel bracelet. Unlike the SNA411, it’s a 3 link bracelet and comes with a deployment clasp. So, it’s not as easy to get off.
That being said, the case is on the smaller side. The watch’s case only measures 1.57 inches (40 mm) across which means it’s more suited for smaller wrists.
It’s not too thick either. The case is only 0.43 inches (11 mm) in width which is moderately thin.
You’ll see a tachymeter on its bezel. This is perfect for a pilot as you can record the speed and distance in a range of things.
Its display is made with Hardlex, which is Seiko’s favourite glass type.
It’s completely black, with rectangular markings that replace numerals. They’re large and are full of lume. The second hand is red and there are red accents in the North, South, East and West positions.
There are 3 sub-dials, each for the chronograph feature. One of them reads up to 60 minutes, the other 60 seconds and the third one, 1/10th of a second.
There’s an outer ring that allows you to read the minutes with the smaller watch hand.
The watch is a Japanese Quartz. It utilizes the 6T63 mechanism which is a mecha-quartz mechanism. Like the SNA411, its chronograph has 5 ticks per second.
The SNA411 is a great pilot watch as it comes with a functional slide rule, 2 chronograph subdials and a sub-dial on the 6 o’clock position that gives the time in a different time zone. The fact that it’s durable and has an accurate Japanese Quartz mechanism makes it a great investment.
That being said, the alternatives are quite good and most of them are within the same price range as the SNA411.
With our Seiko flightmaster review done and dusted, you can now make a more informed decision when it comes to buying this watch.