Modello Tre U3S-T-AA
Collab - Chronograph
Sandblasted Grade 2 titanium case & Swiss Sellita automatic movement
Safari Orange TPU strap & Extra Solaro fabric with leather lining and avana brown Essex leather keepers
Purchase on the Sease website
Ref. UWK-U3S-T-AA
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Description Discover more
The UNIMATIC x Automobili Amos for Sease Modello Tre U3S-T-AA is a groundbreaking 40mm automatic chronograph crafted in lightweight, sandblasted Grade 2 titanium. Engineered for performance, it features a Sellita SW510 BH b chronometer movement with a 56-hour power reserve and a precision tachymeter scale. The titanium gray dial is protected by a double-domed sapphire crystal and features Super-LumiNova® orange accents for maximum legibility. Built for extreme environments, this 300m water-resistant tool watch includes an 8mm screw-down crown, oversized pushers, and a sapphire exhibition caseback. It comes complete with a safari orange TPU strap and an exclusive Solaro fabric strap with titanium hardware.
Movement
Automatic calibre Sellita SW510 BH b 28800BPH
Self-winding / manual winding
Accuracy ± 5s/ day
Min 56h, typical 62h power reserve
Case
Diameter 40mm, 41.5mm with the bezel
Grade 2 titanium with sandblasted finish
120 clicks mono-directional safety bezel
Dial
Titanium gray dial, two subdials
Super-LumiNova® GL dark orange
Warm gray second rail and dial trims
Titanium gray ladder skeleton H+M, reverse lollipop S with safari orange tip
Durability & protection
300m ≈ 1000ft ≈ 30atm WR Individually tested
2.5mm thick double domed sapphire
Inner side anti-reflective coating
Design
Made in Italy
Iconic Modello Tre case design
Limited edition of 30
What's included
Safari orange TPU two-piece quick-release strap
Extra Solaro fabric two-piece strap with leather lining and avana brown essex leather keepers
UNIMATIC x Automobili Amos tough case, warranty card with unique ID seal
FAQ Frequently Asked Questions
What is a chronograph watch?
A chronograph is a timepiece that combines traditional timekeeping with a precision stopwatch function.
Its integrated mechanism enables the accurate measurement of elapsed time (60minutes).
By operating the pushers, you can start, stop, and reset the chronograph seconds hand with ease.
How to use the Modello Tre chronograph function?
UNIMATIC’s Modello Tre is a mecha-quartz chronograph, offering a 300-meter water resistance.
To use your watch’s chronograph function, unscrew the two pushers by rotating them downwards until they are all the way out; press the top pusher, in order to start the stopwatch, the second hand will start moving across the dial and the left minutes subdial will move accordingly.
Pressing the top pusher again will stop the chronograph and pressing it a third time, when the chronograph is stopped, will start it once again.
If you wish to reset your chronograph back to zero, simply press the bottom pusher, and the hands will immediately return to the starting position.
It is very important to remember to always screw down the pushers whenever you are not using the chronograph function, in order to help to maintain the proved water resistance. Please be aware that the second hand is dedicated to the chronograph function, it will not move if the chronograph function is not engaged.
Why is every UNIMATIC watch individually numbered?
Each piece is produced in a strictly limited edition and numbered by hand on the caseback, guaranteeing its authenticity and its place within the series.
How durable are UNIMATIC watches for daily wear?
The 316L stainless steel case, double-domed sapphire crystal with anti-reflective coating and 360° protection system are engineered to take daily knocks in stride, from the desk to the water.
What kind of lume is used for low-light visibility?
Hands and indices are treated (unless stated) with Super-LumiNova® colours picked to match the design details, delivering a strong, long-lasting glow for clear legibility in low-light and underwater conditions. It is not radioactive and requires exposure to light (natural or artificial) to charge.
Does the stainless steel bracelet fit my watch?
The UNIMATIC UBR-TLQ18 solid stainless steel bracelet is compatible with almost all the UNIMATIC lineup. Above is a chart to help you choose the correct end-link variation for your watch. Please note that the bracelet is available in two different finishes: Brushed and Sandblasted. While a bracelet may be mechanically compatible with your watch in terms of fit and attachment, it may not match the watch aesthetically if the finish is different.
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