05/29/2026
Armin Strom Gravity Force Ultimate Sapphire 💎 Traditionally, a mainspring does not deliver constant power. When fully wound, it provides more torque; and as it unwinds, the torque drops, which can hurt accuracy. The Gravity Equal Force solves this with a patented equal-force barrel and a modified Maltese cross stop-work mechanism. Instead of letting the mainspring use its entire power reserve, the system only allows it to operate within its most consistent range of torque. Once the spring reaches the weaker part of its power curve, the mechanism stops it from unwinding further. Constant is a rare feature, and it’s even more rare to find it in an automatic watch with a microrotor 🤓
