Automatic Airmaster SL300 | 2 Styles - Classy Men Collection
Automatic Airmaster SL300 | 2 Styles - Classy Men Collection
Automatic Airmaster SL300 | 2 Styles - Classy Men Collection
Automatic Airmaster SL300 | 2 Styles - Classy Men Collection
Automatic Airmaster SL300 | 2 Styles - Classy Men Collection
Automatic Airmaster SL300 | 2 Styles - Classy Men Collection

Classy Men Collection

Automatic Airmaster SL300 | 2 Styles

Regular price €149.95

(taxes & VAT included)

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✔ Worldwide delivery
✔ 365-day returns
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Automatic Airmaster SL300 

The S300 series is a classic watch with a high-beat 4Hz movement. It means that the second hand of the watch tics 8 times within a second instead of the normal one tic per second. On top of the hi-beat movement, the watch comes equipped with 5 ATM water resistance and Hardlex mineral glass. The simplicity of the dial and design makes the SL300 an extremely versatile all-around watch. If you are looking for a simple watch with a clear representation of time that doesn't require a battery to work, the Airmaster S300 series is definitely for you.

  • 1 Year international warranty
  • No battery needed 
  • Water resistance: 5 ATM
  • Weight: 107g
  • Power reserve: 40 Hours
  • Dial diameter: 40mm 
  • Case material: Stainless steel 
  • Case thickness: 12mm 
  • Time accuracy: +/- 4 Seconds a day
  • Window material: Hardlex mineral glass 
  • Movement: Automatic self-wind 
  • Band material: Genuine leather
  • Band width: 18mm  
  • Band length: 23cm 

Maintenance of a hand wind watch

The Automatic Airmaster SL300 is an automatic self-wind mechanical watch, which means that it doesn't require a battery. Hand-wound watches need to be winded before use. After the first winding, the watch will keep moving and winds itself automatically from natural hand movement if used at least 8 hours during the day. 

How to wind a hand-wound watch? 

  1. Pull out the crown
  2. Screw the crown anti-clockwise to the current time
  3. Push the crown back
  4. Turn the crown clockwise until you feel the resistance (about 10-15 rounds)

Stop winding the watch when you feel the resistance. If you overwind the watch, the spring might break.

  • Questions
  • Sustainability
  • Shipping & returns


Do you ship internationally?

Yes, we do ship internationally and, what's best, it's free this September! Shipping times will vary depending on your location.

Can I return the product if I don't like it?

Of course! If you want to return a product, simply head over to our refunds and returns portal and initiate the return process.

Are there any additional costs, like taxes or duties?

No additional costs whatsoever. Our prices include taxes and duties, and there will be no additional charges upon delivery. Even the shipping is free when you order during September 2023.

Got more questions? Visit our help center for answers!


Closing the gap between today and a renewable and sustainable tomorrow is essential. We vision a world that derives its energy purely from renewable sources, operates in a fully sustainable way, and hosts an environment with clean air, water, and nature. Learn more about our sustainability!

Since 2018, we are fully committed to doing everything we can, including investing a minimum of 2% of all our proceeds towards this goal. To support our vision, we:

Reduce our ecological footprint by using minimal packaging materials when shipping our products

Provide a safe and inclusive working environment, fair pay, and flexible working hours for all our employees

Implement efficient recycling programs and preserve electricity and water whenever possible at our HQ

Invest a minimum of 2% of all our proceeds annually to projects or organizations that match our vision, are committed to, and actively participate in making the world more green and eco-friendly

Shipping & returns

We ship worldwide! Most orders will be packaged and shipped within 48 hours.

Country Estimated Delivery*
United States Arrives 2-14 days from shipment
United Kingdom Arrives 2-14 days from shipment
Europe Arrives 4-20 days from shipment
Australia Arrives 4-20 days from shipment
Canada Arrives 3-16 days from shipment
Rest of the World Arrives 7-30 days from shipment

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