Powered by Light
– Energy that never stops.

Discover freedom from battery changes.
GUL’s Powered by Light watches use advanced solar technology to keep you going – anywhere, anytime. Designed for an active lifestyle and built to perform in any light condition.

Powered by Light
– energy that never stops.

Discover freedom from battery changes.
GUL’s Powered by Light watches use advanced solar technology to keep you going – anywhere, anytime. Designed for an active lifestyle and built to perform in any light condition.

Powered by Light
– Energy that never stops.

Discover freedom from battery changes.
GUL’s Powered by Light watches use advanced solar technology to keep you going – anywhere, anytime. Designed for an active lifestyle and built to perform in any light condition.

Paired with Silicone straps

136.05
This product has multiple variants. The options may be chosen on the product page
gul watches surfer with green watch powered by light , by beach
Green watch no.1 powered by light by Gul watches, on green fabric
gul watches velcro armbandsklocka klocka
solar powered watch gul on arm ascending from water with splash
The experiences

What our customers say

Really attractive and comfortable watch. I’m very happy with it.

Nuno Reis

Portugal

Happy with the purchase. The product is spectacular. Very good value for money. Fast shipping and excellent follow-up by Customer Service. Highly recommended.

Nicholas

United kingdom

I’ve had one of your watches for 36 years now and only ever had to replace the strap. A fantastic watch thanks

Billy Steele

GB

Excellent watch, only mistake was not ordering two so we could have his and hers!

Chris Squire

GB

Guter Preis , schön angenehm und robust , hatte in den 90er schon eine ähnliche Gul bin eifach begeistert. Sehr schnelle Lieferung in die Schweiz, Besten Dank

carpagaus

switzerland
The experiences

What People say

Lovely watch very comfortable to wear. Excellent service and delivery.

Colin

United kingdom 
 

Happy with the purchase. The product is spectacular. Very good value for money. Fast shipping and excellent follow-up by Customer Service. Highly recommended..

Nicholas

United kingdom 
 

Really attractive and comfortable watch. I’m very happy with it.

Nuno Reis

Portugal

Excellent watch, only mistake was not ordering two so we could have his and hers!

Chris Squire

GB

I’ve had one of your watches for 36 years now and only ever had to replace the strap. A fantastic watch thanks

Billy Steele

GB

Guter Preis , schön angenehm und robust , hatte in den 90er schon eine ähnliche Gul bin eifach begeistert. Sehr schnelle Lieferung in die Schweiz, Besten Dank

carpagaus

switzerland

Powered By Light - Silicone

136.05
This product has multiple variants. The options may be chosen on the product page

With Velcro / PU

Powered By Light - Silicone

136.05
This product has multiple variants. The options may be chosen on the product page

With Velcro / PU

Product details

gul watches Powered by light battery full power 4 months, charged sunlight 5 hours, cloudy 20 hours, lamp 60 hours
Product Specifications
Solar Charging Details
gul watches Powered by light battery full power 4 months, charged sunlight 5 hours, cloudy 20 hours, lamp 60 hours

Product Specifications

Solar Charging Details

gul watches Powered by light battery full power 4 months, charged sunlight 5 hours, cloudy 20 hours, lamp 60 hours

Built for the elements. Designed for freedom.

The Powered by Light series is crafted for those who live life outdoors — from ocean sessions to everyday adventures.
With no need for battery changes and a design inspired by GUL’s surf heritage, it’s built to perform when you do.
Tough, functional, and ready for anything — powered by nothing but light.

Key Specifications

  • Movement:
    Epson Cal. AS01A – reliable, precise, and solar-powered
  • Power source:
    Converts sunlight and artificial light into clean energy
  • Battery-free design:
    No battery replacements ever needed
  • Full power reserve:
    Up to 4 months of operation after full charge
  • Charging time:
    5 hours in bright sunlight (outdoor, clear weather)
    20 hours in cloudy conditions
    60 hours under indoor fluorescent light
  • Low-power indicator:
    Second hand moves every 2 seconds to alert you to recharge
  • Water resistance:
    10 ATM – ready for swimming and adventure
  • Durability:
    Hardened mineral glass and stainless-steel case
  • Temperature protection:
    Safe up to 50 °C
  • Eco-friendly:
    Sustainable energy system that reduces battery waste

Built for the elements. Designed for freedom.

The Powered by Light series is crafted for those who live life outdoors — from ocean sessions to everyday adventures.
With no need for battery changes and a design inspired by GUL’s surf heritage, it’s built to perform when you do.
Tough, functional, and ready for anything — powered by nothing but light.

Built For The Elements. Designed For Freedom.

The Powered by Light series is crafted for those who live life outdoors — from ocean sessions to everyday adventures. With no need for battery changes and a design inspired by GUL’s surf heritage, it’s built to perform when you do. Tough, functional, and ready for anything — powered by nothing but light.

The straps

Silicone

  • 20 mm wide
  • Length: xx mm (from buckle to first hole, including 42 mm watch case)
  • Hypoallergenic and gentle on the skin
  • Soft, flexible, and exceptionally durable
  • Designed for comfort both in and out of the water
  • Compatible with No.1 and Powered by Light models.

Velcro

  • 18–20 mm wide
  • Compatible with No.1 and Powered by Light models
  • Skin-friendly, lightweight, and breathable
  • Secure fastening — if one spring bar fails, the other keeps your watch safely attached
  • Incredibly tough and made to endure active conditions
  • Fully adjustable for a perfect, custom fit on any wrist.

The Straps

Silicone

  • 20 mm wide
  • Hypoallergenic and gentle on the skin
  • Soft, flexible, and exceptionally durable
  • Designed for comfort both in and out of the water

 

  • Compatible with No.1 and Powered by Light models.

Velcro

  • 18–20 mm wide
  • Skin-friendly, lightweight, and breathable
  • Secure fastening — if one spring bar fails, the other keeps your watch safely attached
  • Incredibly tough and made to endure active conditions
  • Fully adjustable for a perfect, custom fit on any wrist.
  • Compatible with No.1 and Powered by Light models
silicone straps gul watches watch strap yellow on arm

Interested in something else?

Have a look at our other products:

Collections

Watches

No.1

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Powered By Light

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No.2

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No.3

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Kids

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Sale

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