Armin Strom Mirrored Force Resonance Zeitgeist 1665 3N gains yellow gold tones

At a glance

• The mainplate and bridges receive matt 3N yellow gold-coloured PVD, complemented by hand-finished edges, polished black lacquer dial elements and heat-blued steel hands.
• Hand-wound calibre ARF21_ZG connects two regulating systems through a patented resonance clutch spring. Armin Strom says the arrangement is designed to improve chronometric stability in real-world conditions.
• The movement runs at 25,200 vibrations per hour (3.5 Hz), with an 80-hour power reserve from two independent barrels. A twin-seconds flyback mechanism resets both seconds hands simultaneously.
• The steel case measures 43 mm in diameter, 11.55 mm high and 49.6 mm lug-to-lug, with 30 metres / 100 feet water resistance. It comes on a dark grey Alcantara strap.
• Reference ST26-ZG.90 is limited to 25 pieces worldwide, each engraved “1 out of 25” on the caseback. The price is CHF 82,000.