The Basics

The Armin Strom Gravity collection was introduced at BaselWorld 2013, featuring the brand’s first self-winding movement – with the micro-rotor powering it being visible through the open-worked dial. Like other Armin Strom ‘Fire’ models, the Gravity Water features a rose gold case. The off-center dial ring is black.

Brand: Armin Strom
Family: Gravity
Reference: RG13-GF.90
Name: Gravity Fire
Produced: 2013
Limited: Yes, 100 units

Below is a detailed look at Armin Strom’s model RG13-GF.90 from Gravity watch family, including the price, case details and movement features.

Armin Strom Gravity RG13-GF.90

The Details

Armin Strom’s Gravity Fire (RG13-GF.90) was originally released in 2013. This watch features a automatic movement beating at a frequency of 18000 bph ( 3 Hz) to provide a 120-hour power reserve when fully wound.

The Case

The rose gold 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 arabic numerals hour markers and minute track, covered by a sapphire glass. Armin Strom’s Gravity model RG13-GF.90 is water resistant up to 50 meters (164 ft). A display caseback is over the back of the watch case.

Material: Rose Gold
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 Gravity RG13-GF.90 movement is a powered by caliber AMR13 made by Armin Strom. The 26-jewel automatic movement is 36.6mm in diameter. Its balance wheel oscillates at 18,000 semi-oscillations per hour or 3 Hz. This movement offers a 120-hour power reserve.

Type: Automatic
Brand: Armin Strom
Caliber: AMR13
Base: N/A
Display: Analog
Diameter: 36.6mm
Jewels: 26
Reserve: 120 hours
Frequency: 18000 bph
Time: Hours, Minutes, Small Seconds
Chronograph:
Additionals:

The Price

How much does the Armin Strom’s Gravity RG13-GF.90 cost? This watch was introduced in 2013 and has been in Armin Strom’s collection for around . This watch is a limited edition with just 100 pieces released. 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.

Specifications:

  • Brand: Armin Strom
  • Model: Gravity Fire
  • Reference Number: RG13-GF.90
  • Limited: Yes, 100 units

Case & Dial:

  • Material: Rose Gold
  • Glass: Sapphire
  • Back: Display
  • Diameter: 43.4
  • Thickness: 13
  • Lug Width: N/A
  • Dial Color: Skeleton
  • Indexes: Arabic Numerals and Dauphine-shaped hands
  • Water Resistance: 50 meters

Movement:

  • Winding: Automatic
  • Brand: Armin Strom
  • Caliber: AMR13
  • Display: Analog
  • Diameter: 36.6mm
  • Jewels: 26
  • Power Reserve: 120 hours
  • Frequency: 18000 bph
  • Functions: Hours, Minutes, Small Seconds

About Armin Strom

Armin Strom logo

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