- Patented a 24-hour Indication Watch.
World War I
- Pocket & Trench Watches for all combatants.
- First Chronograph.
- Auto Rem Self-winding timepiece.
- Aero Compax – Stopwatch, Moon Phase, Medico, Tri- Uni- Master Vortex.
- Pour Hermes – Chronograph.
- White Shadow & Golden Shadow Thinnest automatic watch movement of the era.
- Owned by Bulova.
- Introduced quartz movements to replace auto and manual wind movements.
- Purchased by Stelux Holdings Interational, Ltd.