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The Armin Strom Gravity Equal Force Ultimate Sapphire Purple is a strictly limited masterpiece showcasing the finest in Swiss mechanical watchmaking. Only 25 examples will be produced each year, making it a highly collectible timepiece.
This striking watch features a guilloché-engraved purple mainplate crafted by renowned artist Kari Voutilainen. Powered by Armin Strom's patented equal force transmission integrated into the barrel, it provides unmatched timekeeping precision.
Through the sapphire crystal caseback and dial side, the unique two-spring micro-rotor and power reserve indicator can be admired. Meticulous finishing techniques such as straight graining, perlage, and polished bevels decorate the movement. The small off-centered sapphire crystal dial further enhances its prestige.
Presented on a light grey nubuck leather strap with purple stitching, this Ultimate Sapphire Edition combines mechanical innovation, awe-inspiring craftsmanship and a bold chromatic scheme. As a limited edition of only 25 produced annually, it will surely become a highly sought-after collector's piece.
Gravity Equal Force Ultimate Sapphire Purple
Technical specifications
| Indications | Hours, minutes, seconds, power reserve indicator | |
| Movement | Armin Strom manufacture Caliber ASB19 | |
| Automatic winding with micro rotor, Geneva-drive equal force barrel, offset display with subdial seconds | ||
| Main plate | purple PVD plate with guilloché pattern by Kari Voutilainen | |
| 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 | |
| Case | stainless steel | |
| Sapphire crystal and case back with anti-reflective treatment | ||
| Diameter | 41 mm | |
| Height | 12.65 mm | |
| Water resistance | 3ATM | |
| Lug-to-Lug | 48.09 mm | |
|
Dial |
Grey toned off-center sapphire dial with subdial |
|
| Hands |
Faceted polished hands and Super-LumiNova® filling |
|
| Strap | Delivered with a grey nubuck leather strap with purple stitching and keepers | |
| Width lugs/buckle | 20/18 mm | |
| Buckle | Pin buckle or folding clasp available in stainless | |
| Reference | ST24-GEF.SA.AC.M.A7.FC | |
| Limited production | 25 pieces per year |
