The Jaeger-LeCoultre Memovox Tribute to Deep Sea (Reference Q2028470) 40.5mm, is a limited-edition luxury dive alarm watch released in 2011 as a historic homage to the brand's iconic 1959 diving timepiece. This specific "European Edition" variant features a clean, matte black dial signed with the full Jaeger-LeCoultre branding and was strictly limited to 959 pieces worldwide.

• Diving Alarm: Rather than relying on a modern rotating bezel to track elapsed time, this watch uses a mechanical voice alarm to alert divers when it is time to ascend. The internal alarm disk is set via the central luminescent triangle on the dial.

• Dual Crown System: The crown located at 2 o'clock manually winds and sets the alarm mechanism, while the crown at 4 o'clock is used to wind the movement and adjust the time.

• Resonating Case Back: Features a solid steel case back engraved with a vintage motif of a deep-sea frogman explorer. The back acts as a physical resonator, allowing the alarm vibrations to be felt against the wrist underwater.

• Fixed Bezel: The external black bezel is completely fixed and non-rotating, staying entirely faithful to the original 1959 design layout.