The season when the sun’s rays shine warmly has arrived. As we head into the heart of summer, the highly anticipated 2026 new model—the Chuchima Glashütte “M2 Seven Seas S 40” in Light Blue, designed to add a refreshing touch to your wrist—has arrived at TS Horiuchi!

We’ll take a closer look at the appeal of this diver’s watch, which beautifully blends professional-grade high performance with urban elegance.

1. The “Light Blue Dial,” reminiscent of a dazzling summer sky and the ocean

The first thing that catches your eye is the light blue dial, which exudes a sense of transparency.
Featuring three-dimensional guilloché (pyramid pattern) decoration, it shimmers with a rich, ever-changing luster depending on the angle of the light. It gives off a refreshing impression even under the intense summer sun and adds a striking sense of coolness to your wrist, whether you’re wearing a jacket or a casual T-shirt and jeans.

2. A "40mm case" that provides an exquisite fit and a high-quality finish

The 40mm mid-size case, which fits comfortably on the wrist, completely redefines the rugged image of traditional military divers' watches.

A Perfect Balance of Satin and Polished Finishes: The case and bracelet feature a meticulous satin (hairline) finish, complemented by a delicate polished (mirror) finish along the edges, creating a sophisticated, luxurious look.
A sleek, slim 12.5mm design: Although it is a full-fledged diver’s watch boasting 500m water resistance, it sits comfortably against the wrist without catching on cuffs, making it a beautiful complement to a suit.
We invite you to visit our store to experience the exquisite weight and comfortable fit that feels like a second skin the moment you slip it onto your wrist.

3. Military DNA with “50 atm (500 m) water resistance” to conquer the harsh summer

The model name “M2” signifies its military heritage. Its appeal lies in its rugged construction, capable of withstanding harsh environments—a feat made possible only by Chuchima, which carries on the legacy of the pilot’s chronograph once adopted by the German Air Force.
Thanks to its screw-down crown and robust case construction, it boasts a genuine water resistance rating of 50 atm (500 m). It’s built to withstand not only water sports like swimming in the ocean or pool but also summer downpours and sweat without any issues.

[Price including tax] ¥379,500

To check availability, please contact us here using the product number "Chuchima K10."

[Model Number] 6156-30
[Country of Origin] Germany
[Manufacturer] Tutima
[Series] M2 SEVENSEAS S
[Movement Type] Self-winding (Automatic)
[Dial Color] Pastel Blue
[Crystal] Sapphire Crystal
[Water Resistance] 500 meters (50 atm)
[Case Material] Stainless Steel
[Case Dimensions] Diameter 40 mm, Thickness 12.5 mm, Weight 187 g
【Finish】　Polished & Hairline Finish
【Strap Type】　Metal Bracelet
【Strap Material】　Stainless Steel (SS)
【Movement】　Tutima 330
【Case Size】　Gent’s Size (Men’s)
【Other Features】　Date Display, Hacking Function, Screw-Down Crown

A Note from the Store Owner: With its unbeatable durability as a diver’s watch and a stylish light blue dial that looks great whether you’re out on the town or at the office, this is truly “the most eye-catching, sophisticated sports watch for adults this summer.” You’re welcome to stop by the TS Horiuchi store to hold it in your hands and experience its quality and how comfortably it fits on your wrist. We sincerely look forward to seeing you there.

Please click here to contact us.

Click here for the Chuchima list.