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The Rado True Square Automatic Open Heart watch showcases an open-heart design revealing the automatic Rado calibre R734 movement with an 80-hour power reserve. Built with a 38 mm polished plasma high-tech ceramic case and bracelet, it delivers enduring scratch resistance and modern aesthetics.
Its grey dial features rose gold-coloured bevels, 12 diamond hour markers totaling 0.096 carats, and hands coated with Super-LumiNova for enhanced low-light readability. A flat sapphire crystal with double anti-reflective coating protects the front, while a transparent titanium and sapphire caseback displays the inner mechanism.
Engineered with an antimagnetic Nivachron hairspring tested in five positions, this Swiss-made timepiece ensures exceptional reliability and precision.
Key Features
| Brand | Rado |
| Model | True Square Automatic Open Heart |
| Reference Number | R27083712 |
| Gender | Men's |
| Movement Type | Automatic |
| Caliber | R734 |
| Power Reserve | 80 hours |
| Case Material | Plasma High-Tech Ceramic |
| Case Diameter | 38.0 mm |
| Case Thickness | 9.7 mm |
| Dial Colour | Grey, Rose Gold |
| Gemstones | 12 Diamonds (0.096 Carat) |
| Crystal | Flat Sapphire Crystal with Anti-Reflective Coating |
| Caseback | Transparent Sapphire Crystal and Titanium |
| Bracelet Material | Plasma High-Tech Ceramic |
| Bracelet Colour | Plasma |
| Clasp Type | 3-Fold Clasp in Titanium |
| Balance Spring | Antimagnetic Nivachron Hairspring |
| Weight | 120 g |
| Country of Origin | Switzerland |
Highlights
- Swiss-made automatic Rado calibre R734 movement with an 80-hour power reserve
- Open-heart grey dial accented with rose gold-coloured bevels and 12 diamonds
- Constructed from polished plasma high-tech ceramic with a titanium caseback and clasp
- Antimagnetic Nivachron hairspring tested in five positions for superior accuracy
Downloads
Frequently asked questions
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PAYMENT METHODS

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SHIPPING & RETURNS
DELIVERY
- We aim to dispatch all in-stock items from our warehouse within 2-5 business days. An email will be sent to you which will include all your tracking information once your order has been handed over to our courier partner.
- If an item is out of stock, we will email you as soon as possible to arrange a full refund or exchange.
- FREE shipping for all orders to any South African address.
- International delivery to Zimbabwe, Namibia and Botswana is available for some brands. Please contact us for a shipping quote.
- Easy 7 days returns and exchanges
RETURNS
If you do not like the product you can return it within 7 days, assuming the item is not worn, scratched or damaged in any way, and includes all the original packaging.
Please contact us for any returns or exchanges
WATER RESISTANCE
Please check the marking on the back of your watch case and refer to the following table to confirm the degree of water resistance of your watch and the preferable conditions of use. A watch’s water resistance is not permanently guaranteed. It is affected by the ageing of gaskets or deformation of watch parts due to accidental shock. To preserve a watch’s water resistance as long as possible, please follow the precautions below:
- Wipe off moisture, sweat or dirt with a soft dry cloth after removing it from the wrist in order to increase the durability of the case back, gaskets and band.
- After using a water resistant watch in ocean water, wash it in fresh water and dry it with a soft cloth.
- Do not wash a water resistant watch while the crown is pulled out.
- Do not operate the crown or press a button when the watch is wet.
- A periodic overhaul service is recommended to check the water resistance of the watch regularly to ensure it’s functionality.
〇:OK, ✕:Not OK
Type of water resistance | For saturation diving | For scuba diving | Enhanced water resistance for | Water resistance for | Non-water resistance | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Water resistance | Professional Diver's Watch | Diver's watch | 20 | 10 | 5 | 3 | ||||||||
Usage example | Accidental splashes and Contact with rain | 〇 | 〇 | 〇 | 〇 | 〇 | 〇 | × | ||||||
Swimming, Yachting, | 〇 | 〇 | 〇 | 〇 | 〇 | × | × | |||||||
Skin diving | 〇 | 〇 | 〇 | 〇 | × | × | × | |||||||
Scuba diving | 〇 | 〇 | × | × | × | × | × | |||||||
Saturation Diving | 〇 | × | × | × | × | × | × | |||||||
REVIEWS
Rado True Square Automatic Open Heart Men's Watch R27083712
WHY BUY FROM US?
- AUTHORISED ONLINE DEALERThe Watch Boutique is an authorised online stockist for all brands. This includes a full international warranty.
- FREE AND FAST DELIVERYShipping is free for all orders in South Africa. We dispatch all orders within 2-5 business days.
- SECURE PAYMENT OPTIONSIncluding Buy Now, Pay Later plans with PayFlex and Pay Just Now.
- AFTER-SALES SERVICEWe have a full on-site watch repair workshop to take care of all after-sales needs.
