
Available Early April
Seimitsu Alutimo – Enhancing Performance for a New Generation.
Mechanical Revolution:
Seimitsu is stepping into the future with the ‘Alutimo,’ a cutting-edge pushbutton integrating Cherry MX microswitches geared towards high-speed performance.
Cherry MX Speed Silver:
Experience the swiftness of MX Speed Silvers, renowned for rapid input execution. Furthermore, the Alutimo is adaptable, allowing customization with different Cherry MX microswitch profiles.
Innovative Design:
A groundbreaking MX switch holder mechanism ensures uninterrupted connectivity without signal disruptions. With Alutimo’s appealing Solid and Clear color variations in 30mm and 24mm sizes, a fresh aesthetic awaits.
Interchangeable Microswitch:
Effortlessly swap the pushbutton microswitch with other Cherry microswitches using optional spacers provided by Seimitsu.
Key Features of Seimitsu Alutimo:
– Available in 30mm and 24mm sizes
– Dual-Piece Plunger design for artwork customization on Clear Alutimo versions
– Hot-swappable MX profile Microswitches (3-Pin)
– Customize MX Switches with 1.0mm (Included) and 0.2mm Spacers (Available Separately)
– Simplify swapping with the Seimitsu Switch Extractor Tool (Offered Separately)

Cherry MX – Color / Mechanical Characteristics
| Switch Type | Operating Force | Actuation Point | Total Travel | |
|---|---|---|---|---|
| MX Blue | Clicky/Tactile | 60g | 2.2mm | 4.0mm |
| MX Brown | Tactile | 55g | 2.0mm | 4.0mm |
| MX Red | Linear | 45g | 2.0mm | 4.0mm |
| MX Black | Linear | 60g | 2.0mm | 4.0mm |
| MX Speed Silver | Linear | 45g | 1.2mm | 3.4mm |
| MX Silent Red | Linear | 45g | 1.9mm | 3.7mm |
| MX Silent Black | Linear | 60g | 1.9mm | 3.7mm |
| MX Low Profile Red | Linear | 45g | 1.2mm | 3.2mm |
| MX Low Profile Speed | Linear | 45g | 1.0mm | 3.2mm |
| MX Green | Clicky/Tactile | 80g | 2.2mm | 4.0mm |
| MX Clear | Tactile | 65g | 2.0mm | 4.0mm |
| MX Grey | Tactile | 80g | 2.0mm | 4.0mm |

Alutimo Shim Pack for Precision Adjustment
– Alutimo 1mm Shim
– Alutimo 0.2mm Shim
The shims serve to extend travel distance for enhanced customisation.
By default, the Alutimo switch features the MX Speed Silver, with a 1mm Shim pre-installed.
Enthusiasts have the flexibility to fine-tune actuation points using the shims. You can opt for concise, quick-acting buttons without shims or ultra-sensitive buttons reminiscent of MX Red/Blue switches using 2 x 1mm shims.
Utilizing the 1mm Shim as Default:
This practice stems from the actuation point variations inherent in the MX Silver switch.
The Speed Silver exhibits a tolerance range of -0.6mm to +0.6mm, a substantial span of 1.2mm. The 1mm shim addresses this spectrum, accounting for potential discrepancies between switches.
For instances where the individual Speed Silver tolerance aligns near -0.6mm, users can remove the 1mm shim for a shortened key press. Conversely, if a particular Speed Silver switch nears +0.6mm, utilizing the Alutimo sans the 1mm shim may result in missed or incomplete key presses.
0.2mm Shim Enhancement:
Enthusiasts can fine-tune individual MX switch discrepancies with the 0.2mm shim, crafting the ultimate responsive MX button configuration.

