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Charles Watch Co. Presents

THE TESSARO APERTURA

Set yourself apart from the ordinary and make your mark with a mechanical masterpiece. The TESSARO Apertura features an exposed beating balance wheel, hand-finished guilloché dial, and timeless haute horology aesthetics.

TESSARO Open-Heart Automatic Watch in Champagne Satin
Open-Heart Calibre
21,600 vph • 42h Reserve
Free Worldwide Shipping
Priority tracked courier
10-Year Warranty
Lifetime movement care
60-Day Free Returns
100% satisfaction guarantee
Express Delivery
Dispatched in 24 hours
Haute Horlogerie & New Releases

The Flagship Timepiece Collection

Explore our latest finalized masterworks: from celestial perpetual moonphases and glacial sports automatics to heritage racing chronographs.

FLAGSHIP MASTERPIECE
TESSARO Grand Sovereign Moonphase Perpetual Watch
18k Gold • Celestial Moonphase

Grand Sovereign 'Moonphase'

18k Yellow Gold, barleycorn guilloché dial, celestial blue moonphase & triple calendar subdials.

Finish:
NEW LAUNCH
TESSARO Integré Glacier Ice Blue Watch
40mm • Sunburst Ice Blue & Jubilee

Integré 'Glacier Ice Blue'

Radiant glacial guilloché dial, diamond-polished baton markers, 5-link jubilee steel bracelet.

Finish:
HERITAGE RACER
TESSARO Monza Racing Chronograph Watch
41.5mm Cushion • Bi-Compax Panda

Monza 'Racing Chronograph'

1970s cushion-case racing chronograph, sunburst emerald dial, silver panda sub-dials, jubilee bracelet.

Finish:
BESTSELLER
TESSARO Maestro Imperial Silver Watch
41mm • Clous De Paris Dial

Maestro 'Imperial Silver'

Silver guilloché dial, heat-blued steel hands, open balance wheel at 6 o'clock.

Finish:
LIMITED EDITION
TESSARO Maestro Obsidian Noir Watch
41mm • 18k Rose Gold PVD

Maestro 'Obsidian Noir'

Matte obsidian dial, brushed rose gold chapter ring, exposed escapement gears.

Finish:
ULTRA-SLIM DRESS
TESSARO Ambassador Ultra-Slim Dress Collection
39mm • 7.8mm Ultra-Thin

Ambassador 'Ultra-Slim'

Ultra-thin dress watch collection in Clous de Paris Silver, Rose Gold Anthracite & Concentric Wave.

Finish:
A Masterpiece of Precision

The Heart That Never Sleeps

Every TESSARO watch from Charles Watch Co. is born from an uncompromising pursuit of mechanical purity. By unveiling the escapement mechanism through our signature round open-heart aperture, time transforms from mere numbers into a living, beating work of kinetic art.

Protected by scratch-resistant domed sapphire crystal with anti-reflective treatment, the dial combines classic Parisian guilloché textures with contemporary surgical-grade 316L stainless steel.

Exposed Balance Wheel
Domed Sapphire Crystal
Quick-Release Straps
50M Water Resistance
Discover Our Heritage
Donna Perla Rosa Watch

Donna 'Perla Rosa'

Mother-of-Pearl & Diamond Bezel
$269 $359
Donna Champagne Radiance Watch

Donna 'Champagne'

18k Gold & Milanese Mesh
$279 $369
Master Watchmaker assembling open-heart movement
The Charles Watch Co. Atelier

Individually Calibrated Horological Art

Inside every TESSARO timepiece resides a dedicated self-winding mechanical engine regulated by master horologists. The balance spring vibrates at 21,600 beats per hour, converting your natural wrist movement into pure perpetual energy.

Calibre Calibre T-820 Open-Heart Automatic
Power Reserve 42 Hours Autonomy
Jewels 21 Synthetic Rubies
Accuracy Regulation 5-Position Chronometric Testing
Explore The Movement
Versatility in Every Stitch

Quick-Release Straps

Transform your TESSARO timepiece in seconds without any tools. Switch seamlessly between rich Italian alligator-embossed calfskin, sleek Milanese mesh, or supple satin leather.

Shop Strap Collection
TESSARO Interchangeable Straps