Modello Quattro U4-GMT-EMJDM
Collab - GMT
Professional Made in Italy GMT military watch
Automatic caliber NH34A 21600bph
E. Marinella blue double-layer nylon two-piece quick-release strap with UNIMATIC embroidery
Available exclusively in Japan through Floens online and selected E. Marinella retail locations at JPY 230,000 (excl. VAT). International shipping is not available.
Ref. UWK-U4-GMT-EMJDMEdition of 100
Description Discover more
The Modello Quattro U4-GMT-EMJDM, a Made-in-Italy military GMT watch, features an E. Marinella blue dial with debossed micro-pattern, matte white trims, and Super-LumiNova® BG W9. Time is displayed with E. Marinella blue phantom ladder hands, a reverse lollipop seconds hand, and a matte black GMT hand.
Protected by a 2.8 mm flat sapphire crystal with anti-reflective coating, the watch features a brushed 316L stainless steel 40 mm case, 8 mm crown, and fixed monoblock bezel, providing individually tested 300m / 1000 ft / 30 ATM water resistance.
Powered by the NH34A automatic GMT movement, it offers more than 41-hour power reserve, hacking seconds, self-winding, manual winding, and dedicated GMT functionality. The watch comes on an E. Marinella blue double-layer nylon two-piece quick-release strap with UNIMATIC embroidery with brushed stainless steel hardware signed UNIMATIC.
The caseback features a dedicated E. Marinella ties engraving and individual progressive number. Limited to 100 pieces and covered by a 24-month worldwide warranty, the Modello Quattro U4-GMT-EMJDM brings UNIMATIC’s military design together with E. Marinella’s sartorial heritage.
Movement
Automatic caliber NH34A 21600BPH
Date & GMT function
Hacking seconds hand
Self-winding/manual winding
Accuracy -20~+40s/ day
More than 41h power reserve
Case
Diameter 40mm
Fixed monoblock bezel
316L stainless steel case brushed finish
Dial
E. Marinella blue dial with printed micro-pattern
Super-LumiNova® BG W9
Date window h6
Matte white open second rail and dial trims
E. Marinella blue color ladder phantom H+M, reverse lollipop S
Matte black color 24H, hollow arrow tip in Super-LumiNova® BG W9 tip
Durability & Protection
300m ≈ 1000ft ≈ 30atm WR Individually tested
2.8mm thick flat sapphire
Inner side anti-reflective coating
Design
Classic Modello Quattro case design
Edition of 100, individually numbered
What's included
E. Marinella blue double-layer nylon two-piece quick-release strap with UNIMATIC embroidery
Stainless steel brushed hardware signed UNIMATIC
UNIMATIC x E. Marinella 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 and individually numbered with an engraved number on the caseback.
Inside the packaging, the international warranty card handwritten, further confirming the authenticity and unique place of each piece 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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