Question 1

Case: Pink Gold 18 cts or Titane

Accepted Answer

Width : 44 mm
Height : 14,3 mm
Case finish : vertical satin finish
Bezel finish : polished
Horn finish : welded, polished and micro-blasted
Inter-horn distance : 23 mm

Question 2

Back: Pink Gold or Titane, screwed

Accepted Answer

Engraving : by hand
Sun dial decoration : hand-engraved with grand feu enamel
Sun dial origin : artisan watchmaker’s farmhouse from 1750, Les Bois
Strap : real alligator, large scales with tassel
Buckle : tongue pink or grey gold 18 cts
Crown : pink gold with machine engraved logo
Brand logo : 3 fir trees on 3 mountains
Logo symbolism : settling of the Jura by clearing, around 1350

Question 3

Dial: silvered or matt, minute and second indicator

Accepted Answer

Hour and minute indicator ring : Cellsun decoration
Hour and minute indicator ring : Cellbevelled
Hand center : hand guilloche work
Hand center : progressive circular pyramids

Question 4

Hands: gold, hand decorated

Accepted Answer

Hand decoration : drawing on the 2 faces, bevelling on the flanks

Question 5

Main plate: hand guilloche worked

Accepted Answer

Pyramids: 60 tapering

Question 6

Movement: Harmonious Oscillator

Accepted Answer

Dimensions : h. 7,78 mm / Ø 39,55 mm
Winding : manual, 49 crown revolutions
Power reserve : about 70 hours
Manufacture : made by Rudis Sylva
Purchases from third parties : 7 parts : escapement, stones, spring, Incabloc
Indicators : hours, minutes, seconds
Main plate machining : on machine with bed plate, 175 operations
Accuracy check : 100 % of components

Question 7

Harmonious oscillator: Unique system worldwide

Accepted Answer

Balances : toothed, interlinked, ensuring the same amplitude
Escapement : only 1 with 1 pallet fork positioned at 90 degrees
Frequency : 21,600 vibrations/hour (3 Hz)
Cage rotation : 360 degrees in 60 seconds
Cage diameter : 17,40 mm
Balance spring : 2, flat, asymmetric deployment
Balance spring symmetry and energy : constantly opposed
Vertical gravity correction : instantaneous, completely eliminating the effects of gravity

Question 8

Movement finishes: Haute Horlogerie finishing

Accepted Answer

Main plate : bevelling, tapering pyramid guilloche work
Bridges : hand-decorated, bevelling, circular graining, drawing
Gear train : circular graining, diamond-polished corners
Screws : machine threading with controlled undercut
Barrel drum : snailed
Titanium cage bridge : bevelling, 28 inward corners, drawing (30 hours’ work)

RS14

Description