Sector
Sector Smartwatch S-03 R3251294001

Product Information
Overview
The S-03 is a square-shaped smartwatch that manages to combine minimalist design with a surprising arsenal of smart tools. The shiny aluminum of the case gives a premium feel that stands in elegant contrast to the all-black digital display, which remains sharp and easy to read even in bright sunlight. Under the surface, a powerful battery solution works to power the watch's health and lifestyle functions - from real-time weather updates to the ability to manage music and phone calls directly from the wrist. The screwed case back reinforces the watch's robust identity, while the angular shape gives a modern expression that feels just as right in the gym as in the office.
Comfort
Weighing just 40g, the S-03 is barely noticeable when worn – a definite advantage for both nighttime sleep tracking and long workouts. The silicone strap has a silky smooth surface that resists sweat and dirt, and its perforated structure improves air circulation to minimize skin irritation. The generous 20cm band length allows the watch to be easily adjusted for a custom fit, while the buckle keeps everything firmly in place even during intense movements. The ergonomically rounded edges of the case and smooth back counteract pressure points, so you can wear the watch around the clock and take full advantage of its sleep and health measurements.
Summary
The S-03 delivers a sophisticated blend of lightweight comfort and comprehensive smart features. The sleek aluminum case and sleek black display create an aesthetically pleasing exterior, while features like music control, phone calls, and health tracking make the watch a versatile hub for both exercise and everyday life. The result is a smartwatch that not only looks good, but also makes life easier – every hour, every day.
Measurements & Material
- Strap material
- Silicone
- Diameter
- 40 mm
- Width of bracelet
- 22 mm
- Thickness
- 12 mm
- Glass
- Mineral
- Clockwork
- Quartz
Design & Style
- Case color
- Silver
- Color of strap
- Black
- Dial color
- Black
- Target group
- Men’s
- Water protection (ATM)
- 3
- Trademark
- Sector
Technical details
- Features
- Sleep tracking
Delivery
For some products, the delivery time is 1–2 business days. Orders placed before 3:30 PM on weekdays are usually shipped the same day and delivered the next business day, depending on your location in the country. For other products, the estimated delivery time is 3–6 business days.
Returns
We want you to feel completely confident when shopping with us. That's why we offer a 30-day right of return from the day you receive your order. If you change your mind about your purchase or if the watch doesn't meet your expectations, you can easily return it for an exchange or refund. For returns, you will conveniently receive a QR code to use for the return process. Read more about the terms and conditions here.
All watches at Kronura come with a minimum 2-year warranty.
What if the watch stops working?
When you shop at Kronura, you can feel secure – we handle the entire warranty process from start to finish. Should anything unexpected happen to your watch during the warranty period, you only need to contact us, and we will take care of the rest.
1. Contact us via email at (Support@kronura.se). Describe the fault as clearly as possible and attach images if possible.
2. Wait for a response from our customer service team, who will get back to you within 1–2 business days with further instructions.
3. We manage the process – Kronura arranges for the watch to be sent to the brand's authorized service center.
4. Resolution and feedback – you will be notified by us when the matter is resolved and the watch has been repaired, replaced, or rectified according to the warranty terms.
Do you need help? We're here for you.
Please contact us if you have questions about:
- Your order
- Products and availability
- Delivery or returns
- Warranty and complaints
- Care and maintenance of your watch
Frequently asked questions
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When your order ships, you will receive a tracking number via email. Delivery is made with Postnord and can be tracked directly on their website.
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We have a watch guide on our website that helps you choose the right size based on your wrist size and personal style.
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Yes, we offer installment payments via Klarna, allowing you to pay at your own pace and feel secure throughout the entire purchase.


