Urban Jürgensen & Sønner Tourbillon Email Minute Repeater

Since its establishment in 1773, Urban Jürgensen & Sønner has always sought out technical challenges in the creation of numerous and exceptional horological creations of great originality. The Urban Jürgensen & Sønner Tourbillon Email Minute Repeater continues this tradition to the present day.

The minute repeater, one of the most horology complications to create, traces its origins to era when monumental clock towers used to announce the time in regular intervals with the help of their bells.  As people became more mobile and technology developed even further, chiming clocks for personal use in the form of pocket watches, then finally wristwatches came into use. Many of the miniature parts in these complex chiming masterpieces are so small that they are barely visible to the naked eye, making them the ultimate expression of the watchmaker’s art. Urban Jürgensen & Sønner is among a small number of manufactures who have already proved the expertise of creating such complications.

The Minute Repeater complication of Urban Jürgensen & Sønner’s Tourbillon Minute Repeater allows the user to call upon it to signal the time when desired, as often as one wishes. This is accomplished by pushing a sliding lever located on the side of the case at 9 o’clock, thus activating the chiming mechanism. The watch uses two gongs pitched roughly a third apart for the demarcation of the hours, quarters and minutes.

The regulator style dial refers to the positioning of the blued steel hour and minute hands to separate parts of the dial, thus placing the main accent on the minute hand in the centre. The regulators were used as observatory timekeepers or for the close observation of the exact passage of minutes for scientific studies visually easier than having the hour and minute hands working from the same positions. In this way, the popularity of the regulator style of dial layout coincides directly with the advances made in science, business and general society during the course of the 19th century.

The Tourbillon Email Minute Repeater features a thin (0.65mm) grand feu enamel dial created using precise firing techniques and other traditional artisanal methods involving grinding, lapping and polishing – all entirely executed by hand.

Technical details
Model: Email Tourbillon Minute Repeater

Movement
CALIBER UJS-CLA92 (Ø 27, 60 mm Height 6, 89 mm)
Manual winding, one-minute-tourbillon, minute repeater with enamel regulator dial
Dimensions: Platinum case, 42.5 mm x 13.00 mm
Power reserve: Single barrel with circa 40 hours, manual winding
Jewels: 28
Balance: Free sprung Glucydur with timing screws, 11 mm diameter, beating at 18,000 vph
Movement finished with Cotes de Genève, perlage, anglage and perfectly polished screws, hands, indexes and springs. Mirror black polish is also used extensively throughout the movement
Tourbillon: One minute tourbillon, weight of cage 0.420 grams

Dial
Hand painted grand feu enamel with fondant de Genève.

Leave a Reply

This site uses Akismet to reduce spam. Learn how your comment data is processed.