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Rado True Round Automatic Open Heart

The Rado True Round Automatic Open Heart brings together contemporary ceramic construction and traditional mechanical watchmaking. Reference R27107172 features a 40mm polished black high-tech ceramic monobloc case and crown, paired with a matching black high-tech ceramic bracelet.

Its open-heart design reveals part of the automatic movement through the dial, creating a distinctive visual connection between the watch’s exterior design and its mechanical mechanism.

Black Sunray Open-Heart Dial

The black sunray dial gives the watch a refined monochromatic appearance. Rose-gold-colored bevels add contrast, while the grey printed minute track provides additional definition.

Super-LumiNova® details are applied to the indexes and hands for enhanced readability in lower-light conditions.

Rado Calibre R734 Automatic Movement

Powering the watch is Rado Calibre R734, an automatic mechanical movement with an approximately 80-hour power reserve.

The movement incorporates an antimagnetic Nivachron™ hairspring and is tested in five positions for accuracy.

Black High-Tech Ceramic Construction

The case and bracelet use polished black high-tech ceramic, giving the True Round Open Heart a smooth and contemporary appearance.

The case measures 40mm in diameter and 10.4mm in thickness, while the transparent sapphire caseback incorporates black PVD-coated titanium and allows the movement to be viewed from the rear.

Sapphire Crystal and Display Caseback

The watch uses sapphire crystal for durability and a transparent sapphire caseback that provides a view of the R734 automatic movement.

The combination of ceramic, sapphire and titanium creates a modern technical character while maintaining the minimalist appearance of the True Round collection.

Key Features

• Rado True Round Automatic Open Heart
• Official reference R27107172
• 40mm case
• 10.4mm case thickness
• Polished black high-tech ceramic case
• Black high-tech ceramic crown
• Black sunray dial
• Open-heart mechanical design
• Rose-gold-colored bevels
• Grey printed minute track
• Super-LumiNova® details
• Rado Calibre R734
• Automatic mechanical movement
• Nivachron™ antimagnetic hairspring
• Approximately 80-hour power reserve
• Sapphire crystal
• Transparent sapphire caseback
• Black PVD-coated titanium caseback
• Black high-tech ceramic bracelet
• Titanium three-fold clasp
• 50m water resistance
• Swiss Made