Diesel DZ4378 Men's Watch Black Silicone, 2-year warranty

119,40 €239 €−50%

You save 119 €

The Mega Chief DZ4378 features an imposing 51mm stainless steel case and a robust black silicone strap. Reliable quartz movement, 100m water resistance, legible black dial. 2-year warranty on the movement.

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Your watch

Brand new, never worn
No pre-owned or refurbished products
Original Diesel box
With the brand's documentation
24-month warranty
See the warranty terms
100% authentic
Our authenticity commitment

Delivery options

Mondial Relay· 3 to 5 business daysMondial Relay pickup point

Free

Colissimo· 2 to 4 business daysHome delivery, La Poste

€8.45

UPS StandardRecommended· 2 to 3 business daysHome delivery, extra secure

€9.95

Carrier lead times are indicative.

−20%

Bundle offer: −20 % off the storage accessory

−7,90 €

Diesel DZ4378 Men's Watch Black Silicone, 2-year warranty

This watch

119,40 €

Verona Vegan Leather Compact Travel Case Light Brown Single Watch

Storage −20%

39 €31,10 €

To store your watch

Verona Vegan Leather Compact Travel Case Light Brown Single Watch

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Bundle total

119,40 €+39 €=158,40 €

150,50 €

You save 7,90 €

The −20% discount on the storage accessory applies automatically as long as both products remain in the cart. The watch stays at the displayed price.

Specifications

Brand: Diesel
Reference: DZ4378
EAN-13: 4053858561335
Display: Analogue
Collection: Diesel Mega Chief
Case colour: Black
Strap colour: Black
Dial colour: Black
Date: Yes
Dial diameter: 51mm
Dial thickness: 12mm
Water resistance: 100 M ( 10 ATM )
Dial shape: Round
Warranty: 2 years
Gender: Men
Hour markers: Baton and numeral markers
Strap material: Rubber / Silicone
Dial material: Stainless steel
Movement: Quartz
Style: Sports
Crystal type: Mineral

Brand: Diesel
Reference: DZ4378
EAN-13: 4053858561335
Display: Analogue
Collection: Diesel Mega Chief

The black Diesel watch DZ4378 embodies the bold sporty style of the Mega Chief collection. Stainless steel case 51mm, clean black dial with baton indices and numerals, comfortable silicone strap: here is a men's watch designed for demanding wrists. Precise quartz movement, 100 metres water resistance, date window, the fundamentals serving everyday wear without compromise.

Imposing case and resistant silicone strap

The 51mm diameter is no surprise from Diesel: it demands presence. The stainless steel black case offers proven solidity, whilst the black silicone strap absorbs shocks better than fine mesh. Thickness 12mm, square proportions: this men's watch claims bold sporty style without hesitation. Silicone requires only a rinse in fresh water after showering, no tedious maintenance.

100 metres water resistance for active daily wear

With 10 ATM (100m), the DZ4378 withstands splashes and hand washing without concern. Occasional showering is possible provided you avoid very hot water and aggressive soaps. For regular pool use, we recommend annual seal inspection by an authorised watchmaker. Diving and hot tubs remain out of limits: this Diesel men's watch is an urban and sporty companion, not a diving watch.

Reliable quartz and functional date window

The quartz movement ensures regularity without maintenance (battery change every 2-3 years). The date window integrated into the black dial improves practical readability. Baton indices and numerals aid quick reading, even in motion. Mineral glass resistant to everyday scratches. This Diesel men's watch prioritises horological robustness over aesthetic fragility.

Profile: the wrist that refuses compromise

Intended for men seeking an imposing, legible, easy-to-maintain watch. Bold sporty style, neither discreet nor formally elegant. The 51mm suits robust wrists (18cm+); beyond that, it appears balanced. 2-year warranty on the movement (internal mechanism), does not cover case, strap, crystal, seals, battery, or damage from inappropriate use.

Frequently asked questions

Is the Diesel DZ4378 watch covered by a warranty?

Yes, the DZ4378 benefits from the Diesel 2-year warranty on the movement (internal mechanism). This warranty does not cover the case, crystal, silicone strap, seals, battery, or damage from inappropriate use (impacts, water exposure beyond water resistance rating, chemicals). In case of quartz movement failure, contact Diesel after-sales service.

Can I wear the Diesel Mega Chief DZ4378 in the shower?

With 100 metres water resistance (10 ATM), the DZ4378 tolerates splashes and hand washing. Occasional showering is possible provided you avoid very hot water, aggressive soap and direct impacts. However, this Diesel men's watch is not designed for regular swimming, diving, hot tubs or saunas. Have the seals checked annually if you expose it frequently to water.

What wrist size suits the DZ4378 51mm?

The 51mm case and standard-width black silicone strap suit wrists of 18cm and above. Below 18cm, the case will appear oversized and uncomfortable. Above 20cm, the Diesel men's watch maintains harmonious proportions. The silicone strap offers precise adjustment thanks to its natural flexibility.

What type of movement powers the Diesel DZ4378 watch?

The DZ4378 operates with a precise quartz movement, requiring no manual winding or mechanical maintenance. The battery lasts approximately 2 to 3 years depending on use. This movement type ensures daily regularity without risk of stopping or precision loss, ideal for an everyday sports watch.

Does the black silicone strap of the DZ4378 require special care?

No, the black silicone cleans easily in fresh water with a soft cloth. A rinse after showering is sufficient to extend its lifespan. Unlike leather or steel straps, silicone fears neither perspiration nor minor impacts. Regularly check seal integrity if you expose it frequently to water.