Armin Strom Gravity Equal Force Only Watch 2021

The Swiss family-owned luxury watchmaker Armin Strom will be donating an absolutely unique Gravity Equal Force timepiece to support the Only Watch charity auction to be held November 6, 2021.

The Gravity Equal Force by Armin Strom is the world’s first automatic watch with constant force transmission. The result is consistent power delivery to the balance which ensures that the watch always delivers flawlessly constant precision.

Armin Strom Gravity Equal Force Only Watch 2021

The timepiece is distinguished not only by its groundbreaking technology but by a design and craftsmanship that sets it apart from every other watch.

• The movement’s black plate guilloche pattern was done by hand by renowned watchmaker Kari Voutilainen, a close friend of Armin Strom’s founders.

• The off-center grey-toned sapphire dial – a first for the brand – offers an unobstructed view of the fascinating mechanics inside the case and emphasize the brand’s passion for transparent mechanics at the core of its design philosophy.

• The most eye-catching features of this one-of-a-kind Gravity Equal Force timepiece are the trio of orange-coated brass bridges positioned behind the ASB19 in-house manufacture movement, the orange coated balance wheel bridge on the back of the movement and the hand-finished orange-coated stainless-steel hands that adorn the watch’s striking transparent mechanics. These orange highlights offer a striking contrast to the movement’s black plate.

Armin Strom Gravity Equal Force Only Watch 2021

Presented in a classic 41 mm stainless-steel case, the Armin Strom Only Watch 2021 comes with a black fabric strap with orange stitching, sublimely reflecting the watch’s color scheme which gives the watch a sporty yet classy touch.

Armin Strom Gravity Equal Force Only Watch 2021

This special and unique version of the Gravity Equal Force was designed and produced in-house at the brand’s manufacture in Biel. Like every Armin Strom watch, its movement has been assembled twice. After its first assembly, the movement was painstakingly disassembled and each individual part was cleaned, dried, reassembled and lubricated before being meticulously regulated, tested, and returned to the case.

Technical details

Model: Gravity Equal Force Only Watch 2021
Ref. AS/ID 19-0033

Hours, minutes, seconds, power reserve indicator

Armin Strom manufacture Caliber ASB19
Automatic winding with micro rotor, Geneva-drive equal force barrel, offset display with subdial seconds
Regulating system: Balance wheel with 4 regulating screws
Power reserve: Geneva stop-work limited to 72 hours
Dimensions: 35.52 mm x 11.67 mm
Frequency: 3.5 Hz (25,200 vph)
Finishing: Hand-finishing to the highest quality level
Jewels: 28
Number of components: 202

Stainless steel
Sapphire crystal and case back with anti-reflective treatment
Diameter: 41 mm
Height: 12.65 mm
Water resistance: 3ATM

Grey toned off-center sapphire dial with subdial
Hands: Manufactured by Armin Strom, orange-coated stainless steel with hand finishing

Delivered with a black fabric strap with orange stitching and stainless-steel double folding clasp