Armin Strom Tourbillon Water

The Manufacture joins the highly exclusive club of horologers that develop and produce their own tourbillon movements. The tourbillon of the new ATC11 calibre is distinguished by a lever worked in 18ct white gold and an assembly that places the balance wheel and seconds pinion on the same axis.

A hallmark of the Tourbillon Collection is the exposed, intricate inner mechanics. The brand has promoted modern forms of skeletonising, with designs integrated from the early stages of the calibre before being entirely crafted by hand in the Manufacture. The ARMIN Tourbillon Collection, based on the elements Earth, Fire, Water and Air present the brand’s aesthetic genius and pays testament to the Manufacture’s full spectrum of watchmaking skills.

Technical Specifications

Ref. ST13-TW.50

Manufacture movement
Manual-winding, Tourbillon, double spring barrels, 10-days power reserve, small seconds and decentred time indications
Frequency: 18’000 A/h
Jewels: 24
Number of components: 184

Stainless steel
Sapphire crystal and case back with anti-reflective treatment
Diameter. 43.40mm
Total height: 13.00mm
Water-resistance: 50m

White with founded appliques

Stainless steel

Delivered with a genuine dark blue alligator horn-back strap and double-fold clasp in stainless steel as well as an additional dark blue rubber strap

Limited to 50 pieces

All versions




  • Functions: Hour, minute, small second, Tourbillon
  • Wind-up: Manual wind-up with crown wheels turning on the dial side
  • Driving: Twin mainspring barrels
  • Plate and bridges: Plate and tourbillon bridge are decorated at the highest level, hand-engravings always correspond to each element
  • Escapement: Escape wheel and pallets made of massive gold with hardened functional areas
  • Regulating system: Screwed balance with Breguet spiral
  • Frequency: 18,000 A/h
  • Number of Jewels: 24 rubies
  • Number of individual parts: 184
  • Diameter: 36.60mm
  • Height: 6.20mm
  • Power reserve: 10 days