Reference 9028470 is the Polaris Chronograph in its most legible form, and this JLC Polaris Chronograph black dial clone puts a grained black surface under the tachymetre instead of a colour. The 42mm stainless steel case carries the fixed tachymetre flange and the twin chronograph registers at three and nine, and the black dial changes how all of it reads: white printing, white hands and two sunken counters, with nothing on the face competing for attention. It is the same tool-watch platform as the blue Q9028480 and the grey Q902843J, separated from them by dial colour rather than by case metal, because all three are 42mm steel.

Build Details

• Case diameter: 42mm
• Case material: stainless steel with polished bezel and satin-brushed flanks
• Dial: black, grained outer ring and sunray-brushed centre, applied luminous indices
• Crystal: sapphire with anti-reflective coating
• Flange: fixed tachymetre scale, 60 to 500
• Movement: clone Cal. 751H, automatic, 28,800 vph
• Functions: hours, minutes, central chronograph seconds, 30-minute counter at 3, 12-hour counter at 9
• Strap: black alligator leather with deployant buckle

A black dial does something specific to a chronograph: it drops the counters out of sight until you go looking for them. The 30-minute register at three and the 12-hour register at nine are grained a shade darker than the sunray centre, so at arm’s length the face reads as one clean black circle with white hands across it, and only up close do the tachymetre track and the printed scales separate out. Under that dial runs the mechanism shared by every 2018-generation Polaris Chronograph: genuine Cal. 751H, column wheel and vertical clutch, 37 jewels, 28,800 vph and 65 hours from twin barrels, copied here as a clone that winds to 62 hours.

Three Finishes, One Colour

The dial is three finishes in a single colour: a grained outer ring, a sunray-brushed centre and a black tachymetre flange. That is why it holds detail instead of going flat under a camera or under office lighting, and why the white printing stays readable across all three zones. The applied indices carry luminous fill, so the markers lift off the black rather than sinking into it. To see the same black with no timing gear behind it, compare the Polaris Q906867J in steel with black dial, which drops the counters for a date window and a rotating inner bezel on Cal. 899. Both are filed under the Polaris lineup and both are steel, but they run on two different movements, not one.

This vs Other Versions

Against the blue Q9028480 and the grey Q902843J, the 9028470 stands apart on dial colour, not on case metal: all three run the same 42mm steel case and the same fixed tachymetre flange. Black reads calmer than the blue and cooler than the grey gradient with its orange accents, which is what lets it go under a cuff without announcing itself. If your rotation already holds a coloured Polaris, the 9028470 covers the days when colour is the wrong answer. This JLC Polaris Chronograph black dial clone bridges sport-watch functionality and dress-neutral restraint in one cohesive 42mm case.

At 62 hours this clone holds the longest reserve of any chronograph in the line, which is a figure worth checking against the spec tables in the JLC Polaris category. The same yardstick runs across the whole brand in how we grade the house’s best clones.

Specifications

• Model: Jaeger-LeCoultre Polaris Chronograph
• Reference: 9028470 (Q9028470)
• Case: stainless steel, polished bezel and satin-brushed flanks
• Case size: 42 mm
• Dial: black, grained outer ring and sunray-brushed centre
• Complications: chronograph, 30-minute counter at 3, 12-hour counter at 9, tachymetre
• Movement: clone Cal. 751H, automatic, 28,800 vph
• Power reserve: 62 hours (genuine Cal. 751H: 65 hours)
• Water resistance: 100 m (same as genuine)
• Crystal: sapphire
• Strap: black alligator leather with deployant buckle