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[SKXMOD] #7 CasiOak Ultra Completed Build
[SKXMOD] #7 CasiOak Ultra Completed Build
[SKXMOD] #7 CasiOak Ultra Completed Build
[SKXMOD] #7 CasiOak Ultra Completed Build
[SKXMOD] #7 CasiOak Ultra Completed Build
[SKXMOD] #7 CasiOak Ultra Completed Build
[SKXMOD] #7 CasiOak Ultra Completed Build
[SKXMOD] #7 CasiOak Ultra Completed Build
[SKXMOD] #7 CasiOak Ultra Completed Build

[SKXMOD] #7 CasiOak Ultra Completed Build

$310.00 USD $364.70 USD Save 15%
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CasiOak Ultra Completed Build
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Please note that due to their originality, except for quality issues,

any customized merchandise by SKXMOD are not returnable or refundable. 

Hope you can understand.





  • FKM Rubber Source Supplier: Daikin Chemicals Japan
  • Case Material: 316L Stainless Steel (Buttons Pre-installed on cases)
  • Coating: Fully IP Coated, Rated over 980HV on Vickers Hardness Test
  • Coating Colors: Only Silver and Black parts are super-hard coated. Rest are not.
  • Glass: Sapphire (Pre-installed on bezels, AR coated on underside)
  • Wrist Circumference (Bracelet): 16cm to 24.5cm
  • Wrist Circumference (Rubber): 16cm to 21cm
  • Individual Link Length: 0.65cm (3$ per piece)
  • (Extra bracelet links purchase from this listing)
  • Case Diameter: 45.6mm (With Crown)
  • Case Diameter: 43.1mm (Without Crown)
  • Lug to Lug: 57mm (With Endlinks)
  • Lug to Lug: 51.8mm (Without Endlinks)
  • Thickness: 10.8mm (After Assembly)
  • Lug Width: 28mm
  • Weight: 84.2g
  • (Case with Module Installed)
  • Weight: 89.2g
  • (Bracelet with Full Links)
  • Weight: 29.4g
  • (Rubber Band with Buckle)
  • Weight: 173.4g
  • (Full Links Bracelet with Case+Module Installed)
  • Weight: 113.6g
  • (Rubber Band and Buckle with Case+Module Installed)





FKM stands for Fluoroelastomer, which is a class of man-made rubber of great density but soft in touch. Our DAI-EL FKM rubber bands and many accompany accessory are specifically made by Daikin.

Able to offer exceptional resistance to wide range of industrial chemicals. Such as acids, oils, and fuels. With their strong carbon-fluorine bonds and low gas permeability, these materials are able to withstand harsh environments and maintain their integrity in low to high temperature conditions. Range from -45 °C to +204 °C.

Most importantly, resistance to oil and sweat in consumer grade product such as this. Soft, flexible, non-reactive materials which will not degrade in long term usage.


Feartures of DAI-EL fluoroelastomer



This product is selling a completed build of "CasiOak Ultra".

And the assembly of this watch is carried out by our team, aka, SKXMOD.

The idea is to wear this timepiece immediately upon unboxing.

Without any installation and least possible labor to adjust.

Therefore you will only get the build in its individual form as video illustrated.

Nothing more and nothing less, please do not mistaken anything else would be given.


But bear in mind that this modding combination is set and cannot be changed.

Please do consider thoroughly before purchasing, because of labor and time.

We will not accept any further request of changes after the assembly begin.

If you want deeper customization, the please go to this site skxmod.design 

Then consult with our customer service for 1 on 1 custom made build.


Due to the originality of it, the order processing and assembly time might take longer than expected.

Depends on the difficulty, it will range from 1 to 2 working weeks till finishing.

Shipping label will be created first. Meanwhile, please be patient with the process. 

Lastly, except for quality issues, customized orders are not allowed to refund or return.


(There might be slight color difference among different accessory and case under same colorway.)

(Due to many variating factor: manufacturing method, material, design and more.)

(Also factor in that we make our own spray painting. Please take into consideration.)

(The term of "Gold" and "Silver" merely represents the colorway.)

(Not meaning coated or made out of true precious metal.)

(Necessary tools and parts are included in the packaging)


This product is not manufactured by Apple, Seiko, Casio or related brands.

It is made by SKXMOD.

A third-party product to accessorize aforementioned brands and more.