40mmAutomatic

Modello Quattro U4S-T-LB
Limited Edition - Time Only

1.470€ Tax & duties included

Swiss automatic movement

Grade 2 titanium sandblasted case

California titanium gray dial

Ref. UWK-U4S-T-LB
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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 ref. U4S-T-LB features a lightweight 40 mm sandblasted Grade 2 titanium case, weighing just 65 grams (head-only). This military-inspired timepiece is built for durability with a fixed monoblock bezel, an 8 mm Alchemical Sun screw-down crown, and a screw-down caseback engraved with NATO Military Symbols. Protected by a 2.8 mm flat sapphire crystal with internal anti-reflective coating, it is water resistant to 300 meters / 30 ATM / 1000 ft.

The design is centered around a sandblasted titanium color California dial, showcasing a unique half-Arabic, half-Roman numeral layout. Enhanced legibility is provided by Super-LumiNova® light blue markers, a titanium-color phantom ladder handset, and a reverse lollipop seconds hand with a cool gray tip. A closed seconds rail and minimal trims complete the clean, technical aesthetic.

Powered by the Swiss automatic Sellita SW200-1 b movement, each watch is individually tested for accuracy. This model is fitted with a mint green nylon NATO strap featuring signed titanium hardware. Limited to only 300 pieces, every individually numbered watch is delivered in a UNIMATIC tough case with a warranty card and unique ID seal.

Movement

Automatic calibre Sellita SW200-1 b

Hacking seconds hand

Self-winding / manual winding

Accuracy ±12s/day

Typical 41h power reserve

Case

Diameter 40mm

Fixed monoblock bezel

Grade II Titanium case sandblasted finish

Dial

California titanium color sandblasted dial

Super-LumiNova® Light Blue

Cool gray closed second rail and dark gray dial trims

Durability & Protection

300m ≈ 1000ft ≈ 30atm WR Individually tested

2.8mm thick flat sapphire

Inner side anti-reflective coating

NATO Military Symbols caseback

Design

Modello Quattro case design

Individually numbered, edition of 300

What's included

Mint Green nylon NATO strap

Titanium sandblasted hardware signed UNIMATIC

UNIMATIC tough case, warranty card with unique ID seal

Grade II Titanium

Sandblasted case

40mm

Case diameter

Automatic caliber Sellita SW200-1 b

Movement

300mt

Water Resistant

41 Hours

Power reserve

Light Blue

Super-LumiNova® Markers

Nato military symbols

Screw down case-back

24 Months

Worldwide warranty

The Strength of Lightness
Vintage Logic

The Strength of Lightness

Engineered in Grade 2 Titanium, the U4S-T-LB offers maximum durability at just 65 grams. Its sandblasted matte finish provides a rugged, anti-reflective aesthetic, combining aerospace-grade performance with ultimate daily comfort.

Vintage Logic

The distinctive California dial blends Roman and Arabic numerals for instant, error-free legibility. Paired with light blue Super-LumiNova®, it’s a high-contrast tribute to military heritage designed for perfect visibility in any light.

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.

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 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.

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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Modello Quattro U4S-T-LB
Limited Edition - Time Only