Armin Strom. A very rare Limited Edition set of 4 manual wind Tourbillon wristwatches with skele...

Armin Strom. A very rare Limited Edition set of 4 manual wind Tourbillon wristwatches with skeletonized dials Armin Strom. Rare coffret comprenant 4 montres bracelet Tourbillon avec cadrans squelette mouvement mécanique Model: Coffret Tourbillon Collection, Fire, Earth, Water, Air, Limited Edition 3/4 Reference: CO12-TC.50 Date: Purchased 17th April 2013 Movement: 24-jewel double-barrel tourbillon calibre ATC11, 10-days power reserve, adjusted to 5 positions Dial: Water model: skeletonized, white outer minute divisions with Arabic numeral 5 minute markers, aperture to display tourbillon cage at 9, diamond and sapphire set bridges at 6 nd 12, polished baton hands with luminous inserts; Air model: skeletonized, white outer minute divisions with Arabic numeral 5 minute markers, aperture to display tourbillon cage at 9, polished baton hands with luminous inserts; Earth model: skeletonized, black outer minute divisions with Arabic numeral 5 minute markers, aperture to display tourbillon cage at 9, black ceramic inserts on the bridges at 6 and 12, polished baton hands with luminous inserts; Fire model: skeletonized, black outer minute divisions with Arabic numeral 5 minute markers, aperture to display tourbillon cage at 9, decoration to bridges at 6 and 12, gilt polished baton hands with luminous inserts Case: Water model: round, 18K white gold, screw down exhibition back; Air model: Round, titanium, screw down exhibition back; Earth model: Round, black DLC coated stainless steel, screw down exhibition back; Fire model: Round, 18K rose gold, screw down exhibition back Strap/Bracelet: Water model: blue Armin Strom alligator leather; Air model: white Armin Strom alligator leather; Earth model: black Armin Strom alligator leather; Fire model: brown Armin Strom alligator model Buckle/Clasp: Water model: signed stainless steel double folding clasp; Air model: signed stainless steel double folding clasp; Earth model: signed black DLC coated stainless steel double folding clasp; Fire model: signed 18K rose gold double folding clasp Signed: Case, dial & movement Size: 45mm Weight: Water model: 175,68g; Fire model: 175,28g Accompaniments: Armin Strom fitted box (dimensions 47cm x 23cm x 19cm), outer card, certificate of guarantee dated 17 April 2013, 4 spare rubber straps (blue, black, brown and white) Footnotes: Established in 2006 and headquartered in Biel, Armin Strom has earned a reputation for crafting timepieces with intricate mechanical movements. Among its standout specialties is the art of dial skeletonisation. This technical and visual complexity is a hallmark of the Tourbillon collection, where the inner workings are proudly on display. Armin Strom has pioneered contemporary skeletonisation techniques, incorporating them from the earliest stages of calibre development and executing the entire process in-house. The Tourbillon collection draws inspiration from the four classical elements — Fire, Earth, Water, and Air — embodying the brand's unique design philosophy and showcasing the full breadth of its horological mastery. This lot is subject to the following lot symbols: Y Y Subject to CITES regulations when exporting items outside of the EU, see clause 13. For further information on this lot please visit Bonhams.com For further information about this lot please visit the lot listing