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A dive watch in a fiery hue from De Bethune
New Models

A dive watch in a fiery hue from De Bethune

Wednesday, 28 October 2020
By The FHH Journal editors
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The FHH Journal editors

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2 min read

Water-resistant to 105 metres (10 ATM), the De Bethune DB28GS “Yellow Submarine” has been designed and developed as a true sports watch.

To create its own fiery, radical, magnetic yellow, De Bethune applies its famous technique of gently oxidising grade 5 titanium to tint its surface naturally. This ritual conjures an extraordinary, rare and uniform fire brown. This know-how is applied to the case components and to most of the movement’s components. Each element is thus individually examined to ensure the process is properly calibrated to suit shape and mass. This preliminary step is essential to obtain in the end a range of uniform tones. However, the human touch and the typologies of the materials mean that tiny variations persist. These nuances are in fact essential as they create a visual resonance that impacts the perception of the result.

Precision, reliability, readability and comfort: the DB28GS “Yellow Submarine” was designed and developed to be a resolutely sporty watch. Based on the observation that a sports watch must be perfectly readable in any kind of weather and every possible situation, a very special and ingenious lighting system has been developed. Therefore, to illuminate the watch and the movement from the inside, a light source is produced by a fully mechanical means that works on the dynamo principle. Visually as simple as the lighting of a bicycle, fully mechanical with no electronics and no battery… but in truth just as complicated as the timbre of a minute repeater… A pusher located at 6 o’clock activates a small gear train driven by the twin barrel. This gear train, by means of a miniature dynamo, provides the necessary energy for lighting the watch. A few seconds of light is more than enough to read the time, even in the middle of the night or in the abyssal depths of the ocean.

DB28GS
DB28GS "Yellow Submarine" © De Bethune

The rotating bezel made its first appearance in watchmaking in 1952. It serves to enable accurate calculation of immersion time, as well as the transition through various decompression stops. of the different levels. Generally, all the numerals relating to the minutes counter are indicated on the bezel, which tends to create a more crowded visual effect. For the DB28GS “Yellow Submarine”, these indications appear on the sapphire crystal driven by the bezel. This developed in the workshops of the Manufacture in L’Auberson enables the model to remain elegantly slender and instils a pleasing casual chic aesthetic. Hand-wound, with central seconds and a five-day power reserve indicated on the dial, the movement is equipped with a state-of-the-art in-house-made balance wheel.

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