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De Bethune - DB28 GS Grand Bleu

The DB28 GS Grand Bleu is the first 100% sport watch created by De Bethune: a diver's watch featuring a unidirectional rotating bezel  and offering water resistance to 10 bar (100 metres / 330 feet) and readability even in poor light conditions.

De Bethune DB28 GS Grand Bleu front view

The 44 mm case offers great comfort thanks to the lightness of titanium, the 12 o’clock crown position and, above all, the presence of the patented system of floating lugs that adapt to wrist size and movements.

The case is enhanced by a rotating bezel enabling the wearer to calculate immersion time. But, in this case, the indications are not on the bezel itself but on the sapphire crystal driven by the bezel.

De Bethune DB28 GS Grand Bleu, detail of the bezel

A special lighting system illuminates the watch and the movement from the inside.  The slightly bluish white light source is produced by a fully mechanical means that works on the dynamo principle.

A pusher 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.

De Bethune DB28 GS Grand Bleu

De Bethune DB28 GS Grand Bleu in the dark

To improve the readability of the hands, a new blue photoluminescent material was developed that is capable to cast the perfect De Bethune blue during the day and radiate the same tone in the dark. Named Blue Moon, this new luminescent material, is proprietary to De Bethune.

For the DB28 GS Grand Bleu, a new calibre was entirely developed and manufactured by De Bethune. Beating at a frequency of 28,800 vibrations per hour with a power reserve of five day, the hand-wound DB2080 calibre is equipped with a state-of-the-art titanium/white gold balance wheel with white gold inserts, optimised for temperature differences.

De Bethune DB28 GS Grand Bleu

The calibre is also equipped with the triple pare chute system. De Bethune was not only the first to design a bridge symmetrical held on both sides and thus serving to maintain the balance wheel perfectly in position, but also added two shock absorbers on either end as well as that of the balance wheel itself. Hence the name triple pare chute.

The model is delivered with two straps: a canvas version and a striated natural rubber iteration with titanium folding clasp, which also contributes to the wearer comfort.

The price of the De Bethune DB28 GS Grand Bleu ref. DB28GSV2AN is Swiss Francs 93,500. debethune.ch

De Bethune DB28 GS Grand Bleu ref. DB28GSV2AN

COMMENTS

Name

A. Lange & Sohne,73,AkriviA,8,alarm,7,Alpina,8,Andersmann,2,Andreas Strehler,5,Angelus,4,annual calendar,29,Anonimo,8,Antiquorum,2,Antoine Martin,2,Antoine Preziuso,1,Apple,1,Apple Watch,1,Aquadive,1,Armin Strom,34,Arnold and Son,20,Astarwatch,1,Ateliers deMonaco,2,Auctions,53,Audemars Piguet,40,Autodromo,1,Bamford,1,Baselworld,4,BaselWorld 2013,50,BaselWorld 2014,53,Baselworld 2015,69,Baselworld 2016,27,Baselworld 2017,64,Baselworld 2018,75,Baselworld 2019,41,Baume,1,Baume et Mercier,19,Bell & Ross,21,Bernard Lederer Universe,1,Blancpain,40,BLU,1,blue dial,3,Bonhams,2,Bovet,8,Brands histories,1,Breguet,58,Breitling,40,Bremont,1,Bremont Watch Company,4,Breva,2,bronze,10,Bücherei,1,Bulgari,44,Burberry,1,C3H5N3O9,1,carillon,1,Carl F. Bucherer,2,Carl Suchy,1,Carrera,4,Cartier,39,ceramic,5,Certina,2,Chanel,1,Chaumet,3,chiming hour,4,Chopard,23,Christie's,4,Christophe Claret,5,Christopher Ward,5,chronograph,342,chronometer,27,Chronoswiss,3,Citizen,3,co-axial,1,column-wheel,7,complete calendar,6,complications,59,concept watch,5,Concord,1,constant-force,28,Corum,13,CSEM,1,Cyrus,5,Czapek,3,Davosa,1,Daytona,3,De Bethune,15,de Grisogono,3,dead seconds,16,detent escapement,2,DeWitt,9,diving,2,diving watches,161,double regulator,2,Doxa,3,drei,1,dress watches,270,dual time,75,Eberhard,17,Edox,1,El Primero,19,Emile Chouriet,1,Emmanuel Bouchet,1,enamel dial,7,enamelling,14,Equation of time,5,Eterna,17,exhibitions,1,F.P.Journe,25,Faberge,2,Favre-Leuba,1,feature article,20,features,55,Ferdinand Berthoud,3,flyback,31,Fondation de la Haute Horlogerie,1,Fortis,4,Franck Muller,6,Frederique Constant,9,Gallet,1,Geneva Watchmaking Grand Prix,8,Georg Jensen,1,George Daniels,3,Gerald Genta,2,Girard-Perregaux,38,Glashuette,16,Glashuette Original,22,Glashütte,30,Glashütte Original,51,Glycine,2,GMT,62,GoS,1,GoS Watches,1,GPHG,6,Graham,5,Grand Feu,3,Grand Prix d’Horlogerie de Geneve,10,Grand Seiko,12,Grande Complication,18,Grande Sonnerie,5,Greubel Forsey,21,Gronefeld,7,Grönefeld,7,Grossmann,3,guilloché,2,H. Moser and Cie,23,Habring,7,Habring2,8,Hajime Asaoka,1,Hallmark of Geneva,2,Hamilton,17,hands-on,18,Harry Winston,9,Hautlence,5,Hermes,14,high jewellery,1,Hublot,11,Hybris Artistica,1,Hydro Mechanical Horologists,7,HYT Watches,12,Icon,1,In pictures,4,independent watchmaker,7,industry news,118,IWC,85,Jaeger-LeCoultre,82,Jaquet Droz,29,JeanRichard,3,jumping hours,26,Junghans,7,Kaj Korpela,1,Kari Voutilainen,5,Korpela,1,Krayon,1,Kudoke,1,Ladies watches,95,Lang & Heyne,2,Lange,19,large date,1,Laurent Ferrier,16,Le Garde Temps,1,Leica,1,Lemania,1,Leroy,3,Linde Werdelin,1,Longines,37,Louis Erard,1,Louis Moinet,5,luxury steel watch,1,LVMH,3,Maîtres du Temps,1,Manufacture Contemporaine du Temps,3,Manufacture Royale,3,marine chronometer,1,Maurice de Mauriac,1,Maurice Lacroix,5,MB&F,27,MCT,1,MeisterSinger,34,meteorite,1,metiers d'art,1,Mido,7,military watches,10,Minerva,1,Ming,1,Minute Repeater,37,Montblanc,46,moon phases,76,Moritz Grossmann,24,Moser,22,Muhle,4,Mühle-Glashütte,3,mystery watches,2,Nautilus,4,New Britain Corp,1,new watches,1877,Nomos,27,Ochs und Junior,4,Officine Panerai,60,Omega,79,Only Watch,2,Only Watch 2015,4,Only Watch 2017,2,Oris,28,Panerai,36,Parmigiani,4,Parmigiani Fleurier,20,Pascal Coyon,1,Patek,15,Patek Philippe,73,perpetual calendar,81,Perrelet,4,Phenomen,1,Philippe Dufour,1,Phillips,4,Piaget,20,Pierre DeRoche,1,pilot watch,64,Pita,1,planetarium,1,platinum,2,pocket watch,3,pocket watches,2,Poincon de Geneve,2,Porsche Design,13,Pre-SIHH 2016: Cartier - Clé de Cartier Automatic Skeleton,1,pulsometer,4,quartz,3,Rado,8,Ralf Tech,2,Ralph Lauren,2,rattrapante,14,Raul Pages,1,Raymond Weil,1,rectangular watches,7,reddot award,1,regulator,15,remontoire,3,Reservoir,1,resonance,7,Ressence,6,retrograde,4,Revelation,1,Reverso,16,review,17,Richard Mille,55,Richemont,3,Richmond,1,Roger Dubuis,11,Roger Smith,1,Roger W. Smith,1,Rolex,38,Romain Gauthier,8,Romain Jerome,1,Royal Oak,17,Rudis Sylva,1,Seiko,21,SevenFriday,2,SIHH,1,SIHH 2012,4,SIHH 2013,25,SIHH 2014,36,SIHH 2015,43,SIHH 2016,44,SIHH 2017,40,SIHH 2018,43,SIHH 2019,52,Singer,2,Singer Reimagined,3,single hand,7,single-hand watches,8,Sinn,12,skeleton,13,smartwatch,6,solar energy,1,Sotheby's,5,Speake-Marin,4,Speedmaster,15,split seconds,7,sport watches,437,Spring Drive,2,squelette,34,steampunk,1,Steinhart,1,striking time,10,SuisseMecanica,1,Swatch,3,Swatch Group,9,table clocks,2,Tag Heuer,74,terra Cielo Mare,1,Tiffany,15,Tissot,2,top news,88,Torsti Laine,1,tourbillon,226,Trilobe,1,Tudor,16,Tutima,1,ultra thin,24,Ulysse Nardin,31,Union Glashutte,1,Urban Jurgensen,23,Urwerk,14,Vacheron Constantin,67,Van Cleef & Arpels,7,Vauchier Fleurier,1,Vianney Halter,3,vintage watches,1,Vulcain,9,wandering hours,1,Watches & Wonders,14,Watches&Wonders,1,worldtime,30,Zenith,57,Zodiac,3,
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Time and Watches: De Bethune - DB28 GS Grand Bleu
De Bethune - DB28 GS Grand Bleu
De Bethune DB28GS Grand Bleu. The DB28 GS Grand Bleu is the first 100% sport watch created by De Bethune: a diver's watch offering water resistance to 10 bar (100 metres / 330 feet), a unidirectional rotating bezel and readability even in poor light conditions. The price of the De Bethune DB28 GS Grand Bleu ref. DB28GSV2AN is Swiss Francs 93,500.
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Time and Watches
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