Thin! At just 5mm thick, the Rado True Square Thinline showcases the true value of ceramics.

FEATURES WatchTime
2025.06.11

It's just 5mm thin. The case of Rado's True Square Thinline is incredibly thin. This is made possible by the material ceramic. In other words, this model is a watch that could only be made by Rado, which makes full use of ceramics. Martin Green, a contributor to the US edition of WatchTime, explains the appeal of this watch.

True Square Thinline

Originally published on watchtime.net
Text by Martin Green
[Article published on January 11, 2025]

The model closest to the essence of Rado

 It's difficult to embody the essence of a brand in a single watch. Rado is no exception. The company's worldview is wide-ranging, from diver's watches to elegant skeleton watches. However, the True Square Thinline is perhaps one of the models that comes closest to embodying the essence of the Rado brand.

True Square Thinline

Rado "True Square Thinline" Ref.R27054162
Quartz (Cal. R420). 13 jewels. High-tech ceramic and Ti case (43.3mm x 37mm, 5mm thick). Water resistant to 3 ATM. Price: 303,000 yen (tax included).

Ceramics, the material at the heart of the brand

 First of all, the black ceramic case and bracelet are noteworthy. While many brands are now using this material, Rado was a pioneer in this field and is one of the few to position ceramic as a core element of its brand.

 Ceramic has two main properties. First, it is extremely hard, durable, and scratch-resistant. This means that Rado watches retain their luster for many years and are hardly affected by the wear and tear of everyday use. Second, it is hypoallergenic and adapts quickly to body temperature. It is also very lightweight, which is another reason why it is so comfortable to wear.

The "Rado style" is also present in the design

 These characteristics are fully utilized in the True Square Thinline, but it is important to note that it is "Rado style." Rado's designs are distinct from other brands, and this is the source of its individuality.

True Square Thinline

The case is made of ceramic, making it just 5mm thick. Let's see how attractive it is!

 As the model name suggests, this model features a square case, but the corners are rounded, making it feel soft in the hand. The 37mm diameter is an excellent balance, neither too much nor too little, making it suitable for a wide range of users.

 The bracelet is one piece, with polished links for a smooth feel, and the overall weight is less than 87g, so light you'll forget you're wearing it.

A modern finish and a great balance of visibility

True Square Thinline

The orange hands and logo stand out against the black dial. I tried wearing it. Now you want to try it out for yourself, don't you?

 The sun-brushed black dial harmonizes with the ceramic case and bracelet, creating a unified look. The indexes are simple black bars, but the contrast with the dial makes them highly legible. The hands and Rado logo are finished in vivid orange lacquer, adding a contemporary touch.

Selection of movement to achieve thinness

 The watch is powered by the quartz movement Cal. R420, which allows for an extremely thin case and makes it easy to wear.

Experience the essence of the brand at your fingertips

 The lightness and comfort of the ceramic means you might forget you're wearing a watch, but the True Square Thinline's presence and distinctive Rado character catches your eye, reminding you that you're holding the very essence of the brand.


Contact info: Rado/Swatch Group Japan Tel. 03-6254-7330


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