The Basics

The Armin Strom Tourbillon Skeleton Earth was introduced in 2016. As all ‘Water’ models in Armin Strom’s collection, the case is done in stainless steel with black PVD coating, while the movement features an equally black coating. The Tourbillon Skeleton is powered by the in-house, hand-wound caliber ATC11-S with tourbillon escapement at 9:00 and a power reserve of 10 days.

Brand: Armin Strom
Family: Skeleton
Reference: ST15-TE.90
Name: Tourbillon Skeleton Earth
Produced: 2016
Limited: No

Below is a detailed look at Armin Strom’s model ST15-TE.90 from Skeleton watch family, including the price, case details and movement features.

Armin Strom Skeleton ST15-TE.90

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The Details

Armin Strom’s Tourbillon Skeleton Earth (ST15-TE.90) was originally released in 2016. This watch features a hand-wound movement beating at a frequency of 18000 bph ( 3 Hz) to provide a 240-hour power reserve when fully wound.

The Case

The stainless steel case measures 43.4mm in diameter and roughly 13mm thick. The round case is paired with a skeleton color dial with dauphine-shaped hands, and a stick / dot hour markers and minute track, covered by a sapphire glass. Armin Strom’s Skeleton model ST15-TE.90 is water resistant up to 50 meters (164 ft). A display caseback is over the back of the watch case.

Material: Stainless steel
Glass: Sapphire
Back: Display
Shape: Round
Diameter: 43.4mm
Height: 13mm
Lug Width: N/Amm
W/R: 50

Case Diameter

Case Thickness

Lug Width

Water Resistance

The Movement

The Skeleton ST15-TE.90 movement is a powered by caliber ATC11-S made by Armin Strom. The 24-jewel hand-wound movement is 36.6mm in diameter. Its balance wheel oscillates at 18,000 semi-oscillations per hour or 3 Hz. This movement offers a 240-hour power reserve.

Type: Hand-Wound
Brand: Armin Strom
Caliber: ATC11-S
Base: Armin Strom ATC11
Display: Analog
Diameter: 36.6mm
Jewels: 24
Reserve: 240 hours
Frequency: 18000 bph
Time: Hours, Minutes, Small Seconds
Additionals: Tourbillon Escapement, Skeleton

The Price

How much does the Armin Strom’s Skeleton ST15-TE.90 cost? This watch was introduced in 2016 and has been in Armin Strom’s collection for around . This watch is not a limited release. As with most luxury watches, the price of depends on the availability and demand.

CURRENT PRICE: Not Available .

For more information, visit Armin Strom online.


  • Brand: Armin Strom
  • Model: Tourbillon Skeleton Earth
  • Reference Number: ST15-TE.90
  • Limited: No

Case & Dial:

  • Material: Stainless steel
  • Glass: Sapphire
  • Back: Display
  • Diameter: 43.4
  • Thickness: 13
  • Lug Width: N/A
  • Dial Color: Skeleton
  • Indexes: Stick / Dot and Dauphine-shaped hands
  • Water Resistance: 50 meters


  • Winding: Hand-Wound
  • Brand: Armin Strom
  • Caliber: ATC11-S
  • Display: Analog
  • Diameter: 36.6mm
  • Jewels: 24
  • Power Reserve: 240 hours
  • Frequency: 18000 bph
  • Functions: Hours, Minutes, Small Seconds

About Armin Strom

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