Modello Quattro U4-AEB
Limited Edition - Time Only
670€
Tax & duties included
Professional Made in Italy military watch
Japanese automatic Movement
Two seatbelt NATO nylon straps included
Ref. UWK-U4-AEB
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Buy Now, Pay Later. 3 payments at 0% interest.
Estimated shipping within 2/4 business days.
You may return the product within 14 days.
24 months warranty.
Description Discover more
The UNIMATIC Modello Quattro U4-AEB is a limited-edition automatic military watch designed for reliable everyday performance. Made in Italy, this 300m water-resistant military watch features a 40mm brushed 316 stainless steel case with a fixed monoblock bezel. The functional matte black dial features Super-LumiNova® C1, with subtle debossed open seconds rail and dial trims, paired with matching hands for enhanced legibility. Built for demanding conditions, the 30atm watch is equipped with a 2.8mm thick flat sapphire crystal with inner-side anti-reflective coating and a distinctive “wrinkled” caseback. Powered by the automatic NH35A movement, it features hacking seconds, bi-directional automatic winding and handwinding, with more than 41 hours of power reserve. The UNIMATIC U4-AEB comes fitted with a black seatbelt NATO strap and includes an additional olive drab seatbelt NATO strap. Limited to 250 individually numbered pieces worldwide, this automatic military watch is delivered in a UNIMATIC tough case with a warranty card featuring a unique ID seal.
Movement
Automatic caliber NH35A 21600BPH
Hacking seconds hand
Bi-directional automatic winding + handwinding
Accuracy -20~+40s/ day
More than 41h power reserve
Case
Diameter 40mm
Fixed monoblock bezel
316 stainless steel case brushed finish
Dial
Matte black dial
Super-LumiNova® C1
Debossed open second rail and dial trims
Durability & protection
300m ≈ 1000ft ≈ 30atm WR Individually tested
2.8mm thick flat sapphire
Inner side anti-reflective coating
“Wrinkled” caseback
Design
Modello Quattro case design
Individually numbered, edition of 250
What's included
Black seatbelt NATO strap
EXTRA olive drab seatbelt NATO strap
UNIMATIC tough case, warranty card with unique ID seal
FAQ Frequently Asked Questions
What is an automatic watch?
The UNIMATIC automatic watch is a self-winding mechanical timepiece powered not by a battery, but by the natural kinetic energy generated from the wearer’s arm movements.
Automatic watches are more sensitive to factors like temperature fluctuations, impacts, and how they are worn.
Consequently, they may not run as precisely as quartz watches, and any timekeeping variations depend on the specific movement type.
Based on experience, new mechanical watches may initially show slight time inaccuracies, which generally self-regulate over time.
Are UNIMATIC watches truly professional diver tools?
Yes. Every diver is water resistant to 300m, individually pressure-tested, and built around a screw-down caseback and crown with a mono-directional safety bezel, fully rated for professional diving.
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.
Are UNIMATIC watches water resistant?
All UNIMATIC cases are engineered to provide exceptional water resistance. Every UNIMATIC watch is individually tested to ensure a minimum water resistance of 300m (30 ATM), while selected on case modello 1 featuring our enhanced case construction are tested to withstand 600m (60 ATM).
Before exposing your watch to water, always make sure the crown and, where applicable, the pushers are fully screwed down and securely tightened. Never operate the crown or pushers while the watch is underwater.
After use in seawater, rinse the watch thoroughly with fresh water and dry it completely.Please refer to your specific model's technical specifications to confirm its certified water resistance rating.
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