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SKX007 Double Domed Sapphire Crystal - Micro Bevel

AR Coating Surface
AR Coating Color

Sapphire ranks among the top of the list on Mohs scale, second to diamonds, when it comes to high resistant to scratching and abrasion. Additionally, given its very wide optical transmission band, these features make sapphire an excellent choice in watch crystal application.

On top of a great material, adding anti-reflective (AR) coating ensures you get the clearest and flawless view of your watch dial. A double sided AR coated sapphire crystal carries a superior clarity compared to single sided AR coating.

Our single sided double domed sapphire crystal has AR coating on the underside of the crystal, while double sided has AR coating on both the topside and underside of the crystal.

Notably, each side are given at least triple layers of AR coating. This resulted in a higher resistance to scratches.

This sapphire crystal is designed to sit flush on our SKX007 Bezel Inserts with an inclination (slope).

Made exclusively for us with quality assurance by ISO 9001 Certified manufacturers.


    1. Quality Swiss Production Quality, ISO 9001 Certified
    2. Material Sapphire
    3. Crystal Shape Double Domed
    4. Crystal Diameter 31.5mm
    5. Crystal Middle Thickness 5.1mm
    6. Anti-Reflective Coating Surface Single Side (Underside) or Double Side (Topside and Underside)
    7. Anti-Reflective Coating Color Blue
    8. Tint Blue AR: Slightly brown (A standard characteristic of all blue AR)
    9. Optical Distortion None
    10. Fit Models 7S26-0020 watch case (such as SKX007, SKX009, SKX011) and 4R36-07G0 watch cases (such as Seiko 5 SRPD/SRPE Series - SRPD51, SRPD57, SPRD63, SRPD76, SRPD77, SRPD79, more)
    1. 1x Sapphire Crystal

    All photos of watches with modification parts are for illustration purposes only and are not included with modification parts purchased.

  • Recommended Mods With:

    1. Swiss Super-LumiNova® BGW9 Dials
    2. Swiss Super-LumiNova® BGW9 Hands
    1. A Complete Guide On How To Mod Your SEIKO Sapphire Crystal (Includes Photos & Video)

Customer Reviews

Based on 9 reviews
Malachy M. (The Bronx, US)
Using this mod part for: SKX007 aftermarket datejust inspired body w/ bezel
Lucius is an exceptional source of watch making Materials

Its lovely, as was the watch dial and hands.

Jeroen (Hillegom, NL)
Using this mod part for: Aftermarket case
Smooth transaction

First time buyer, smooth transaction and fast shipping

Using this mod part for: SKX007
cristal clear

nice dome effect when seeing the watch by side

Bill (Cebu City, PH)
Using this mod part for: Skx007

Has a nice AR coating!

Kurtis B. (Oakville, CA)
Using this mod part for: Srpd73
Sapphire blue ar crystal double dome

Great sapphire, looks really sharp on my new srpd73 rebuild!! I'd recommend, as shipping is extra fast, note that the bezel insert is not flush with the micro edge and sits above the top of the sapphire

Hi Kurtis!

Greatly appreciate the effort of the review and feedback!

As we have custom sloped dimension of bezel inserts, our sapphire crystals are also dimensionally customised to sit flush with our own sloped bezel inserts. Logically speaking, it will most likely not fit sloped bezel inserts from other retailers.

Hope this information helps.


Mike R. (Matawan, US)
Using this mod part for: SKX007
Great experience and nice crystal

This was my first time ordering from Lucius Atelier and I couldn’t be more please. Fast shipping and great crystal.

Todd W. (Penticton, CA)
Using this mod part for: Skx 007
Sapphire glass

Perfect as always shopping with LA!
Astounding quality, the best customer service, Fast shipping. Why I will do business here again and again!
Thank you!

Manuel (Madrid, ES)
Using this mod part for: SKX007,
Very fast and carefully care

Perfect packaging and careful with a lot of protection, he deserves to be valued with 5 stars.

Mike H. (Fort McMurray, CA)
Using this mod part for: Custom design from scratch
Perfect Crystal

Worked perfect with the bezel and insert for my custom build