Vacheron Constantin 'Twin Beat' Perpetual Calendar
Vacheron Constantin has revived its 'Twin Beat' Perpetual Calendar, an impressive mechanical feat featuring two balances that operate at different frequencies. This updated model offers enhanced legibility and a longer standby power reserve, addressing some of the functional concerns of the original 2019 release.
- 42mm platinum case
- 12.3mm thickness
- 70 days power reserve in standby mode
- 5Hz active mode power reserve: 4 days
- 1.2Hz standby mode power reserve: 70 days
The watch utilizes two balances beating at different rates: 5Hz for active use (4-day power reserve) and 1.2Hz for standby mode (70-day power reserve).
Subtle visual changes from the original include a slightly darker dial guilloché and more frosted subdials for improved legibility.
The perpetual calendar indications for month, date, and leap year are presented legibly, appearing to float over the movement.
The movement features anthracite bridges with interior angles and two mainsprings housed within a single barrel, each driving a separate gear train.
The slower 1.2Hz balance is larger than the 5Hz balance, featuring a finer gauge wire for its hairspring and a purple silicon escape wheel.
The brand claims to have resolved reliability issues from the original model, with the new version offering a seamless experience once running.