NMK301 - SKX/SRPD Double Domed Sapphire Crystal
Upgrading your crystal from stock Hardlex glass to a premium Sapphire Crystal is a great first mod for your SKX007 or Seiko 5 Sports SRPD, especially if you intend to pair it with one of our sloped inserts. This NMK301 SKX Double Domed Sapphire Crystal is designed to have a small beveled edge which looks great with both sloped and flat inserts.
The double-dome design of the sapphire crystal ensures that your watch dial is visible at any angle with no distortion. It also has the added benefit of looking really, really cool.
Our double-domed sapphire crystals have Anti-Reflective (AR) coating at the bottom side of the crystal. The AR coating comes in two colours - Blue and Clear AR.
Compatibility Guide
| Spec | Details |
|---|---|
| Crystal Diameter | 31.5mm |
| Case Compatibility | SKX007, SKX009, SKX011, SKX171, SKX173, SKX175 and Seiko 5 Sports SRPD Range |
| Crystal Profile | Domed |
| Bezel Insert Profile | For Sloped Inserts, For Flat Inserts |
| Movement Compatibility | NH35/36 and NH70/71/72 |
| Gasket Compatibility | SKX007 Crystal Gasket |
Very nice and cool on the wrist!
Looks wonderful!
Be sure you pick a slooped bezel to go with it. Namiko is my favorite mod vender. Great selection and service. You can't beat the prices and the quality.
Jeff H.
The top hat with blue ar really improved the look of my SRPD and it was easy to install.
Other mods - ceramic stealth dual time flat insert, coin edge bezel
Good quality and fast delivery!
Perfect fitment
This will be my go-to crystal for any future builds...
This was my first time replacing a crystal on a watch and it took a while but it turned out ok. The slightly domed crystal looks great on my Seiko SRPD55 "5KX".
I love how Namoki lets you know right on the description what parts work together. This crystal looked fantastic in my most recent build and I couldn't be happier. Thanks!
Perfect for the seamless fit and finish with a sloped insert and full legibility. Clear AR Coating on the version I used.
@allthetimemods on insta for more mods and parts used 🙌 thanks
Finished off this build perfectly with that beveled edge.
Made my interpretation of a Skx171 look like something they might've released from the factory.
It fit lovely against the height of my coin edge bezel with NMK 62mas ceramic insert.
One complaint I have is that they automatically come with a clear crystal gasket which did not look good in my build, ordered a new black one but wish there was a choice when purchasing it.
First time installing an arch shape crystal and it looks great!
Perfect fit, used a namoki case
I purchased blue products due to inventory problems, but the quality is very satisfactory
This gives the watch a classy look and magnifies the edges of the indices. Makes them very easy to read at a quick glance.
Fit perfectly, looks amazing with my sloped bezel YM style insert
Always awesome!
Saphire crystal is must have for everyday watches, but when AR colour matches dial it creates awesome light show!
I am a life-long fan of an MLB team whose colors are orange and black (at home those are usually on a white uniform), and I got it in my head that it would be nice to have a watch in matching colors, so I set about building one.
The case and crystal choices were simply because I needed something that was compatible with the NH34 GMT movement, which was the other requirement of this build as my company's home office is in a different time zone than I currently reside in. Over all I'm pleased with the way this came out. There were a couple of snags as I went through this process, but overall it was easy, fun, and well, like I said, I like the result.
I'm super happy with the AR, but I do think this crystal may have come with a gasket on it, that I just couldn't see. I had trouble at first getting this to seat as it seems that there were two gaskets trying to in (one that I put in and one that has to have been on the crystal, but that couldn't/didn't see). Once I got it down to the right number of gaskets (1), it went in without issue and looks great!
Took two attempts to make it flush with the chapter ring, but it looks great.
the cyclops is so clean with the magnifying, also the blue AR is beautiful
