Tourbillon 1 COSC Upgrade

Tourbillon 1 COSC Upgrade


*ATTENTION* in keeping the price of gold cases as low as possible the original price of the gold case upgrade was 3500 Swiss francs. The price was based on a gold price of 50 USD per gram and today the gold price has increased and may increase more.  At the moment the gold price is 62 USD per gram. Therefore, if the gold price remains above 50 USD per gram when we purchase gold, we will need to increase the case price. For example, if gold remains 62 USD per gram, the price will be recalculated as follows (62-50)/50 x 3500 = 840 USD. This would make the final gold case price 4340 Swiss francs.  Please note we will invoice any increase separately and will be in touch via email. 


For those interested in obtaining the official COSC certification with your tourbillon you may order this as an additional upgrade. The reasoning for the additional cost is due to COSC being a 3rd party that charges for certification and there are steps needed for us to prepare your watch for certification. The cost of this upgrade is 300CHF.


If you decide to cancel your entire order there will be a 100CHF cancellation fee, plus related financial service fees.


Please note that local taxes, duties and shipping are not included in the price. Taxes will be charged at the time of final shipment.  Feel free to reach out to us with any questions you might have.


Many thanks!



    Case: 904L stainless steel or 18k gold

    Dimension: Lug to lug 47.8mm, top ring 41mm, case body 39mm, total height 11.8mm, case part height (excluding glass) 10.8mm

    Dial: Two layer Swiss Super LumiNova luminous appliques applied at hour markers

    Hands: Hour and minute hands, seconds indicator on tourbillon cage.  Swiss Super LumiNova luminous filled hands and indicator

    Crystal: Multi-Layer anti-reflection domed sapphire crystal, Horage logo applied on backside of sapphire crystal

    Case Back: sapphire crystal

    Crown: 904L stainless steel or 18k gold

    Water resistance: 100m


    Movement: K-TOU, 19 jewels

    Functions: hand winding, silicon escapement, 100 hour power reserve, tourbillon cage revolves every 60 second, seconds indicator


    Strap: Black Grip Leather, Classic Black Leather, Blue Grip Leather, British Racing Green Leather, Russet Leather, Ocre brown leather, Frosted White leather, Allure Blue Vegan

    Buckle: Single fold , Stainless , U-flex

  • Tax & Shipping

    Please note that tax is not included in the price and 60 Swiss francs will be charged for shipping.

Customer service: +41 32 344 1666