The Ceramic Field Guide

Rado True Square Automatic Open Heart

True Square Open Heart

The Rado True Square Automatic Open Heart is a current-production dress watch with a black high-tech ceramic case. It measures 38.0 mm across, and is water resistant to 50 m. Inside is the Rado R808 (Powermatic 80) automatic movement, with ~80 h power reserve. Complications: Time only. Priced from $2,300 (approx). Brand origin: Switzerland.

Ceramic dress watchesBlack ceramicDisplay backUnder $5,000
Reference
True Square Open Heart
Type
Dress
Price
$2,300 · approx
Case diameter
38.0 mm
Thickness
Lug-to-lug
Water resistance
50 m
Weight
Origin
Switzerland
Movement
Automatic
Caliber
Rado R808 (Powermatic 80)
Power reserve
~80 h
Complications
Time only
Ceramic
High-tech ceramic
Colour
Black
Hardness
Construction
Monobloc
Surface treatment
Caseback
Nickel-free
Not verified (contact-point materials not all confirmed)
Bracelet / strap
High-tech ceramic bracelet or strap
Ceramic bracelet
Optional (or strap)
Crystal
Sapphire
Display back
Yes
Dial
Lume
Availability
Offered
Status
Current
Medium confidence Verified Jul 2026 Source: Rado True Square (maker) Maker / listing ↗
Facts are free to cite with a link.
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Frequently asked questions

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

The Rado True Square Automatic Open Heart has a black high-tech ceramic case. It is recorded at medium confidence pending a maker-stated type.

What size is the Rado True Square Automatic Open Heart?

It is 38.0 mm in diameter, 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 $2,300.

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