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Diesel DZ4323 Mega Chief Chronograph Black Dial Men's Watch
Ref. DZ4323
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Stepping up in the same colour and case shape
At 51mm across with prominent crown guards and structural top and bottom plates, this is a deliberately oversized piece that makes no apology for its size. The case is stainless steel with a black-tone finish, and the mineral crystal carries a multicolour iridescent quality that shifts between orange, red, and blue depending on the light. The black sunray dial holds three chronograph sub-dials tracking tenths of a second, 60 seconds, and 60 minutes, with a date window at three o'clock. Luminous hands and hour markers aid low-light reading. A textured black leather strap, 26mm wide at the lugs, carries the substantial 134g case on a single-prong buckle.
- Reference
- DZ4323
- Brand
- Diesel
- Case size
- 51mm
- Case thickness
- 12mm
- Lug width
- 26mm
- Case material
- Black PVD
- Case shape
- Round
- Dial
- Black
- Crystal
- Mineral
- Movement
- Quartz
- Functions
- Chronograph, Date
- Water resistance
- 100m
- Bracelet / strap
- Leather strap
- Strap colour
- Black
- Clasp
- Buckle
- Lume
- Luminous
- Retailer
- WATCH & WATCH
Additional specifications
- Weight
- 134g
Learn more about Diesel
Renzo Rosso founded Diesel in Molvena in 1978, building a denim brand on deliberate irreverence. The watches, produced under licence by Fossil Group, carry that attitude directly.
Where most fashion watches aim for restraint, Diesel does the opposite: oversized cases frequently past 50mm, blacked-out finishes, exposed screws, multiple crowns, and dials that prioritise visual impact over legibility. The Mr Daddy models stack four time zones onto a single dial.
Whether that appeals is a matter of taste, but the design intent is consistent and unmistakable, which is more than can be said for much of the category.
- 1978
- Renzo Rosso founds Diesel in Molvena.
- 2007
- Fossil Group begins producing Diesel watches.
- 2013
- The oversized Mr Daddy 2.0 launches.
Also in 6 collections
This watch appears in Back in Stock (3,707), Stainless Steel Watches (2,794), Chronograph Watches (1,047), Leather Strap Watches (912), Watches 44mm and Over (706) and All Black Watches (266).
Temporarily out of stock
WATCH & WATCH is not currently taking orders for this reference. Last listed as available on 22 September 2026. Stock is checked nightly and this page updates when it returns.
What the specifications mean
Strengths
- 100m water resistance covers swimming and watersports
- Luminous hands and markers for low light
- Sits in the lower half of Diesel's range as we list it
Worth knowing
- 51mm is a large watch with real presence
- Leather does not suit regular contact with water
Diesel DZ4323 Mega Chief alternatives
Watches from other brands at a similar price, style and size, so you can see what else your budget can buy.
| Specification |  DZ4323 | EFR-539D-1A2VUEF | MK8184 |
|---|---|---|---|
| Price | £169 | £160 | £154 |
| Case size | 51mm | 49.5mm | 48mm |
| Water resistance | 100m | 100m | 100m |
| Movement | Quartz | Quartz | Quartz |
| Strap | Leather strap | Stainless steel bracelet | Silicone strap |
| This watch |
|
|
Your new watch
Frequently asked questions, and things you should know about this watch
Can I swim with it?
Yes. At 100m it is rated for swimming and snorkelling, though not for diving.
Water resistance explainedWill the glass scratch?
It can, over time. Mineral glass handles daily wear but will pick up fine scratches that sapphire would not.
Sapphire, mineral and acrylic comparedDoes it need a battery?
Yes. It is quartz, so expect a battery change every two to three years at a jeweller.
Quartz, automatic and solar comparedWhat size strap does it take?
26mm. Any strap of that width will fit, and on most modern watches quick-release bars make the swap a two-minute job with no tools.
Is it a men's or women's watch?
Listed as men's.
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