The Ceramic Field Guide

Rado True Square Automatic Open Heart

R27083712

The Rado True Square Automatic Open Heart is a current-production dress watch with a grey plasma ceramic case. It measures 38.0 mm across, 9.7 mm thick, and is water resistant to 50 m. Inside is the R734 automatic movement, with 80 hours power reserve. Complications: Time only. Priced from $3,600. Brand origin: Switzerland.

Ceramic dress watchesGrey ceramicOn a ceramic braceletDisplay backUnder $5,000
Reference
R27083712
Type
Dress
Price
$3,600
Case diameter
38.0 mm
Thickness
9.7 mm
Lug-to-lug
–
Water resistance
50 m
Weight
–
Origin
Switzerland
Movement
Automatic
Caliber
R734
Power reserve
80 hours
Complications
Time only
Ceramic
Plasma ceramic
Colour
Grey
Hardness
–
Construction
Monobloc
Surface treatment
–
Caseback
Titanium
Nickel-free
Not verified (clasp or buckle material not confirmed)
Bracelet / strap
Plasma high-tech ceramic bracelet with titanium 3-fold clasp
Ceramic bracelet
Standard
Crystal
Sapphire
Display back
Yes
Dial
Grey open-heart dial with rose gold colored bevels, set with 12 diamonds
Lume
Super-LumiNova
Availability
Offered
Status
Current
High confidence Verified Jul 2026 Source: Maker Maker / listing ↗
Facts are free to cite with a link.
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More ceramic watches from Rado

RadoTrue Square Automatic Open Heart$2,30038.0 mmDress
RadoCaptain Cook High-Tech Ceramic 43mm$2,80043.0 mmDiver
RadoTrue Square Automatic (black)$2,45038.0 mm9.6 mm thick117 gDress
RadoTrue Square Automatic (plasma)$2,45038.0 mm9.7 mm thickDress
RadoTrue Square Automatic (green)$2,45038.0 mm9.6 mm thickDress
RadoTrue Square Automatic Open Heart (rose)$2,95038.0 mm9.7 mm thick116 gDress

Frequently asked questions

What kind of ceramic is the Rado True Square Automatic Open Heart?

The Rado True Square Automatic Open Heart has a grey plasma ceramic case with a titanium caseback. This is confirmed against the maker spec.

What size is the Rado True Square Automatic Open Heart?

It is 38.0 mm in diameter, 9.7 mm thick, and water resistant to 50 m.

How much does the Rado True Square Automatic Open Heart cost, and is it available?

It is current-production and lists from $3,600.

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