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38 mm
Regular price £449
Sale price £449 Regular price £449
Tax included.
Why do we make Bauhaus watches?
light blue
Choose your strap

Available | Delivery time 3-5 days | Free Shipping


38 mm
Regular price £449
Sale price £449 Regular price £449
Tax included.
incl. VAT | Free Shipping & Returns

icon Insured express delivery icon 30 days free returns icon 2 years worldwide warranty icon Excellent Customer Support icon In-house repair service

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Introducing the STERNGLAS Lumatik: A Beacon of Light and Style

As spring welcomes the warm sunrays, we illuminate time itself with our latest creation, the Lumatik Automatic. Answering the community's call, it's the first STERNGLAS model to feature dual-tone Luminova – a feature born from your desires.

Luminova, the luminous material, stores light to ensure readability even in low-light conditions. Whether it's an evening stroll or an extended hike or bike ride, the Lumatik Automatic guarantees clarity and safety.

Combining functionality with flair, the Lumatik Automatic showcases the luminous compound across its white numerals and orange indexes and hands.

Worry-free thanks to sapphire crystal

We only use sapphire crystal for our timepieces. This type of watch glass is usually found in the luxury watch market.

For a perfect view of the dial, we apply a double anti-reflective coating to the sapphire crystal.

What exactly is sapphire crystal?

Sapphire is the third hardest transparent material in the world - after diamond and moissanite.

Curved sapphire crystal not only looks good, it makes the durable watch crystal even more resistant.

This makes it virtually impossible for your sapphire crystal watch to get scratched in everyday life.

Fresh Colors for warm days

Just like the clearest sky, the satin-finished dial shines in a fresh light blue, giving this timepiece a sporty and summery appearance. The shading around the enlarged numbers creates a modern 3D effect that immediately catches the eye.

Protected by a case made of stainless 316L steel and double-domed, scratch-resistant sapphire crystal, the Lumatik is optimally shielded. With its slim 38 mm diameter, it's also suitable for narrower wrists. The Lumatik is a reliable companion for every day adventure – further enhanced by even more precise technology on the inside.

Automatic Movement with up to 60-Hour Power Reserve

The upgraded Miyota 8315 automatic movement gives the Lumatik even more endurance. It boasts a significantly longer power reserve of up to 60 hours compared to the Miyota 8215's 42 hours – noticeable by the red 60 on the dial.

This means you can set aside your timepiece for two days without it stopping and needing a reset. This is quite convenient if you want to switch to another STERNGLAS model. Your Lumatik will then be waiting for you for the next everyday adventure.

A sign of attention to detail is the blued screws, often found in luxury watches as an elegant and decorative element. Bluing is a traditional process where the screws are heated to produce the characteristic blue color. This durable timepiece requires no batteries and operates with the movement of your wrist. Moreover, it's water-resistant up to 5 ATM.

Luminova – an innovative Light Storage Solution

When it's dark, even the best watch is of no use. This was the thought process of the Japanese manufacturer Nemoto & Co. as well. In the early 1990s, they invented a luminescent material that revolutionized the world of watches: Luminova.

This innovation enables the Lumatik timepiece to store light and emit it in the dark, which is why it's also referred to as a glow-in-the-dark color.

This ensures you can always see the time. The brightness and duration of the Luminova effect depend on the intensity of the light source. The longer the darkness lasts, the fainter the glow.

What our customers say about us

Why we make Bauhaus watches?

In your search for a classic and durable watch, you are faced with 2 alternatives today:

1. you can buy a watch from a luxury manufacturer for a very high price, or
2. a watch from a trendy brand whose quality is as short-lived as the trend that made the brand popular.

Moin! I'm Dustin Fontaine, Founder of STERNGLAS...

Read more

When I worked in a watch manufactory during my school days and was looking for a watch for myself, I realised that there would have to be a 3rd alternative.

3. Since 2016, we have been breaking new ground and developing timeless Bauhaus-style watches that will outlive trends and continue to give pleasure for many years to come. And all that at a fair price.

In the meantime, over 53,000 watch lovers are convinced of our mission and our watch design has received several awards.

Find out what makes our timepieces so special by reading on.

Even more precise and reliable: Miyota 8315

The screw-down glass case back offers a view into the heart of the Lumatik. We've listened to the STERNGLAS Community's desire for more power.

The upgraded Miyota 8315 automatic movement, with an extended power reserve of up to 60 hours, stripe decoration on the automatic bridge and a skeletonized rotor, ensures outstanding performance and precision. The blued screws, a cherished feature of high-end luxury watches, are also present in the Lumatik.

Innovative Nylon Strap combined with dark blue leather

A highlight is the new strap made of Seaqual-nylon in the trendy light blue shade, matching the light blue dial. This lightweight strap is especially stylish for summer harmoniously picks up on the colours of the Lumatik with the blue colours. The Lumatik is traditionally available with a soft dark brown or black leather strap as well.

As with all STERNGLAS timepieces, the Lumatik can be customized to suit individual taste and occasion – whether sporty, elegant, or classic: The innovative quick-change system allows for the strap to be swapped out in just a few simple steps.

Easy strap change without tools

Thanks to the quick-change system, you can give your timepiece a new look in just 10 seconds:

1 — Slide the pin of the spring bar inwards.

2 — Pull the strap off the watch.

3 — Put on a new strap by sliding the pin inwards again and inserting the spring bar one after the other into the holes in the case.

Technical Details



Diameter 38 mm
Case height 12 mm
Strap lug 20 mm
Lug to lug 43 mm


Case material 316L stainless steel, polished
Watch crystal Sapphire crystal, double-domed, double anti-reflective coating
Dial light blue (satin finish), Luminova white and orange
Hand color black, orange (Luminova), red
Water resistance up to 5 ATM

Movement & Strap

Movement Miyota 8315 Automatic
Frequency 21.600 A/h = 3 Hertz
Max. Powerreserve 60 hours
Functions Date (6H), hacking seconds, manual winding
Strap Premium 20 black or dark brown, genuine calf leather; Nylon 20 light blue

Any questions left?

Can I order the watch with a different strap?

We will be happy to check whether we can realise your desired combination. Please contact us by e-mail at and we will help you personally.

How is the movement maintained?

We recommend that you have your watch serviced every 3-5 years if it is used daily.

Since there are oils and resins in the watch that can dry out over time, they should be replaced regularly, otherwise mechanical abrasion or bearing damage can occur in the movement. Seals should be checked every 5 years and replaced if necessary, crown and barrel every ten years. This ensures that you will enjoy your mechanical watch for a long time.

You can have your watch serviced directly by our watch service or by one of our specialist retail partners in your area.

Did you know that... ?

...the development of Luminova was a groundbreaking innovation for the watch industry?

Previously, toxic or radioactive materials like radium were used as luminous substances. Luminova is the first non-radioactive and completely safe material that makes the hands of your watch glow in the dark.

We are there for you!

Give us a call:
Mon. 10am – 6pm CET.
Tue. to Fri. 10am – 4pm CET.

+49 (0)40 999 993 69 Chat with us on WhatsApp

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