Dornblueth’s 99.3 calibre presents a lot of information in an uncluttered fashion in order to retain the Classic DNA for which Dornblueth & Sohn is renowned.
The Caliber • The birth of the idea behind the 99.3 complication was born whilst finalising the development of the in-house Caliber 99.2. Even at that time, Master Watchmkers Dieter and Dirk Dornblueth dreamt of integrating an additional complication – the date. Both masters knew this would require time to develop and call for a special dial treatment to ensure balance and legibility – so it was back to the drawing board. The result of their development is the Caliber 99.3 which unites the large eccentric second of the Caliber 99.1, the 99.2 power reserve complcaition and the new inclusion of the date display.
Movement • Details of the movement Cal. 99.3: diameter: 37 mm • height: 4.4 mm • 20 rubies • fast correction of the date by means of a separate button at “2 o’clock” • springing change of date at 0 o’clock • power reserve indicator by means of the bevel gear differential • oversized eccentric second display, indirectly driven below the train by means of an intermediate gear, with friction spring and cantilevered second pinion • power reserve 50 hours (+/- 5%) • 18,000 semi-oscillations per hour • roségold plated three-quarter plate with yellow gold hand-graving of manufactory name and serial number • Geneva stripe finish • retracing ratchet • double sunburst finish on the crown wheels
Case • solid nickel-free stainless steel, polished / burnished, double screw union • diameter: 42 mm • height: 11.5 mm • 1.6 mm sapphire glass on top, slightly domed and anti-reflected inside • screwed sapphire glass base • oversized crown with embossed manufactory name
Dial • sterling silver with the grained, silky matte finished surface of historical deck watches • a special feature of this piece is the hand-applied numerals and indexes numerals for a very classical look and optimal contrast enhancing legibility • oversized eccentric second display at “9 o’clock” • power reserve indicator at “12 o’clock” • date display at “3 o’clock”
Screws • flat polished, heat-blued, with beveled edges • Glucydur screw balance with Nivarox-1-Spring • swan-neck fine adjustment on the hand-engraved balance cock
Hands • steel, hand-polished and flame-blued
Strap • real high-quality alligator leather, hand-stitched • stainless steel pin buckle