Armin Strom Gravity Equal Force Ultimate Sapphire (In-stock - Ships Now)

In-stock and ready to ship.

• Email: shop@collectivehorology.com
• Phone: +1 (805) 321-8877
• Text (US Only): +1 (805) 321-8877

Constant Force, Clear View

Armin Strom returns to its 2019 milestone caliber with a new monochrome execution of the Gravity Equal Force. An off-center grey-toned sapphire dial and dark grey ruthenium-coated bridges open up the view of the ASB19 — the world's first automatic movement with constant force transmission, delivering consistent power to the balance across its 72-hour reserve. The hand-guilloché black plate is executed by Kari Voutilainen. Limited to 25 pieces per year.

Key Details

• Caliber ASB19, in-house automatic with micro rotor on the dial side
• Equal Force Barrel with stop-work declutch mechanism for constant-force transmission
• 72-hour power reserve; 3.5 Hz (25,200 vph); 28 jewels; 202 parts
• Off-center grey-toned sapphire dial with subdial; hand-guilloché black plate by Kari Voutilainen
• Bridges coated in dark grey ruthenium; barrel and micro rotor coated in rhodium
• Hours, minutes, seconds, and power reserve indicator
• 41 mm stainless steel case, 12.65 mm height, 3 ATM water resistance
• Sapphire crystal and caseback with anti-reflective treatment
• Hand-finished stainless steel hands with white Super-LumiNova
• Black fabric strap with light grey stitching, stainless steel double folding clasp
• Limited to 25 pieces per year

Terms & Conditions

Collective Shop is an authorized retailer of all new watches we sell. Please review all shop policies for new watches here before purchase. If you have questions about the details of this or any watch, feel free to contact us prior to purchase at shop@collectivehorology.com.