The Agelocer Racing Hollow and Agelocer Racing Square are both $299, both 44mm, and both built on the same Cal.A5500 automatic movement — which is exactly why marketplace listings for these two watches keep getting mixed up. The catalogue lists the same specs for both and the product photos show the same octagonal, square-shouldered case, so the real difference is the strap: the Hollow comes on French calfskin only, while the Square adds a steel-bracelet version — sold both as a Square variant and as its own Racing Square Steel — for $329. This guide sorts all four related models, plus where the Fast & Furious and Volcano fit if you want licensed branding or a longer reserve.
Verdict: at $299 these are the same 44mm octagonal-case watch on paper — pick by strap and colourway, not by spec sheet, because the spec sheet is the same.
Best all-round pick: Racing Hollow, $299 — French calfskin strap in four colourways, the simplest page to buy from if you want leather.
Best if you want a bracelet: Racing Square Steel, $329 — same Cal.A5500, octagonal case, steel bracelet instead of leather.
Best if you're undecided between leather and bracelet: Racing Square, from $299 — a steel-bracelet colourway is also sold on this same page at $329.
Honest flag: all four Racing Hollow and Racing Square models are 44mm across and 12mm thick, on a 24mm strap, and the Fast & Furious (44.5mm) and Volcano (44.3mm) are fractionally larger still. If your current watch sits at 40mm or under, this will feel large on the wrist — read the sizing section before you buy.
What is the difference between the Agelocer Racing Hollow and Racing Square?
Mainly the strap options. The Agelocer Racing Hollow and Racing Square list the same 44mm, 12mm-thick 316L steel case, Cal.A5500 automatic movement and 42-hour reserve. The Racing Hollow comes on French calfskin only, at $299. The Racing Square is $299 on calfskin or $329 on a steel bracelet.
Both run the same brand-stated Cal.A5500 automatic. Both list a 42-hour power reserve, a sapphire crystal, and an etched steel caseback engraved with 28 jewels and a 5-bar (50m) rating. The catalogue states no difference in case shape — the product photos for both show the same octagonal, square-shouldered case — so what actually changes is whether the strap is calfskin or steel, and which colourway you choose. The Racing Hollow and the calfskin Racing Square both come in Classic Black, Mystic Silver, Luxury Rose Gold and Black Rose Gold at $299. The steel-bracelet versions come in the same four finishes at $329 (the Racing Square Steel page labels the last one Black Gold Steel). If you want the bracelet without scrolling through the Racing Square's eight colour variants to find it, the dedicated Racing Square Steel page lists only the four steel-bracelet colourways.

The Racing Hollow, $299 — 44mm octagonal case, French calfskin strap with orange lining.
What they share: Cal.A5500, 44mm, sapphire, 24-hour indication
On the spec sheet, the Racing Hollow, Racing Square and the women's Racing Hollow Large Dial are the same watch. All three list: a brand-stated in-house Cal.A5500 automatic movement, a 316L stainless steel case measuring 44mm across and 12mm thick, synthetic sapphire crystal glass, an etched and embossed steel bottom cover, a 24mm strap with a 316L pin buckle, a 165mm-230mm wearing length, 42 hours of power reserve, 50m (5 bar) water resistance and a weight of 123g.
The dial function is listed as "three-hand separation, 24-hour indication, luminous system." In practice, the 24-hour indication adds a separate hand or scale tracking where you are in the full 24-hour day, so you can tell AM from PM at a glance rather than guessing from a 12-hour dial. A 42-hour reserve means if you take the watch off Friday evening, it's still ticking Sunday morning — fine for a weekend off the wrist, not enough to survive a full week in a drawer. For the longer-reserve option in this family, see the Volcano comparison below, or browse the full automatic watches collection.
Racing Hollow, Racing Square and Racing Square Steel, side by side
| Model | Movement | Case | Strap | Price | Who it suits |
|---|---|---|---|---|---|
| Racing Hollow | Cal.A5500 | 44mm octagonal, 12mm | French calfskin | $299 | Wants leather, on a page with only the four calfskin colourways |
| Racing Square | Cal.A5500 | 44mm octagonal, 12mm | Calfskin or steel bracelet (one product page) | $299-$329 | Wants to compare leather and bracelet before deciding |
| Racing Square Steel | Cal.A5500 | 44mm octagonal, 12mm | Steel bracelet only | $329 | Already knows they want the bracelet |
| Racing Hollow Large Dial | Cal.A5500 | 44mm octagonal, 12mm | French calfskin | $299 | Wants the same case in White, Elegant green or Elegant powder |
Is the Agelocer Racing Hollow a skeleton watch?
Partly. The dial is openworked ("hollow"), so you can see mechanical layers through the front crystal, which is what Agelocer calls it. The caseback, though, is a solid etched steel cover, not a sapphire display back, so you can't see the movement from behind. That makes it a front-facing skeleton, not the double-sided kind.
If you want the generic mechanics of how openworked dials are built, our skeleton watch explainer covers that without model-specific claims. If a see-through back matters to you, the Agelocer Volcano is the one in this comparison with an exhibition caseback.

The Racing Hollow's caseback: solid steel, engraved with the 42-hour, 28-jewel, 5-bar spec.
What movement is in the Agelocer Racing Hollow?
A brand-stated in-house Cal.A5500 automatic. The Racing Hollow and Racing Square caseback engravings list a 42-hour power reserve and 28 jewels, with water resistance to 50m (5 bar) behind a sapphire crystal. The catalogue spec sheet for these two models does not list a beat rate.
Worth flagging: the Racing Fast & Furious also lists a Cal.A5500, but its own spec sheet states a 40-hour reserve and a 21,600 vph beat rate — two hours' reserve different from the Hollow and Square under the same calibre name. Treat the exact reserve figure as the brand's own stated spec per product page rather than a single number that applies across every Racing model.
How big is the Agelocer Racing Square on the wrist?
44mm across and 12mm thick, on a 24mm strap with a wearing length of 165-230mm, and 123g on the wrist. That is a large, substantial watch by most standards — closer to a dive watch than a dress watch — so try a similarly sized piece first if your usual watch sits at 40mm or under.

The Racing Square on the wrist — 44mm, 12mm thick, black leather colourway.
Can a woman wear the 44mm Agelocer Racing Hollow Large Dial?
Yes — it's the same 44mm, 123g case as the men's Racing Hollow, sold in White, Elegant green and Elegant powder dials and marketed as the women's version. There's no smaller case option within this Racing line, so if you want this design in a daintier size, it isn't offered here.
If 44mm is more watch than you want on a smaller wrist, our best Agelocer watches guide is the place to compare the rest of the range.

The Racing Hollow Large Dial — the same 44mm case, sold as the women's colourways.
Is the Agelocer Racing the same as the Fast & Furious watch?
No. The Agelocer Racing Fast & Furious Automatic is a separate, larger model at 44.5mm with a licensed Fast & Furious caseback and a 40-hour reserve, priced $299 to $339 across four colourways. The Racing Hollow and Racing Square carry no film branding, run a 44mm case and are rated for 42 hours.
The Fast & Furious also swaps the calfskin strap for rubber and drops to 117g against 123g for the Hollow and Square. If the film tie-in and caseback engraving are the draw, all four colourways are on the Racing Fast & Furious product page linked above.
Racing Hollow and Square vs Fast & Furious vs Volcano
Three Agelocer lines at a similar size and price answer three different wants. The Racing Hollow and Racing Square are the plain-badged option: 44mm, Cal.A5500, 42-hour reserve, calfskin or steel bracelet, $299-$329. The Racing Fast & Furious adds licensed branding on a 44.5mm rubber-strap case for $299-$339, with a 40-hour reserve. The Agelocer Volcano is the outlier: a different movement (Cal.A5505), a brand-stated 80-hour reserve — nearly double the Racing line's — a 44.3mm case and a lava-themed openworked dial on rubber, for $339.
If reserve is your priority and you don't need the Racing cases specifically, the Volcano is the one to read up on next — our Agelocer Volcano review covers that model in detail.

The Racing Fast & Furious — 44.5mm, licensed caseback, rubber strap.

The Agelocer Volcano — different Cal.A5505 movement, 80-hour brand-stated reserve, $339.
Is the Agelocer Racing watch any good?
For $299, yes, as a wearable, sapphire-crystal automatic with brand-stated 28 jewels, a 42-hour reserve and a solid 123g on the wrist — a lot of catalogued spec for the price. It is not a swimming watch (50m means splashes, not laps) and at 44mm it is a large, confident watch rather than a subtle one.
For the wider picture on the brand, see is Agelocer a good watch brand?, and for why the crystal matters at this price, sapphire vs mineral crystal. Within the catalogue, the strap choice matters more than it looks: calfskin dresses up more easily but doesn't take sweat or rain as well as the steel bracelet does, so pick strap by how you'll actually wear it, not just by colour.
Skip the Racing Hollow or Square if…
- You usually wear 40mm or smaller — nothing in this comparison runs smaller than 44mm.
- You want to swim or dive in it — 50m is a splash-and-rain rating, not a pool rating.
- You want the licensed Fast & Furious caseback — go to the Racing Fast & Furious instead.
- You want the longest reserve available in this family — the Volcano's brand-stated 80 hours beats the Racing line's 42 by a wide margin.
- You want to see the movement from behind — the Racing casebacks are solid engraved steel, while the Volcano has an exhibition caseback.
Our pick, and the easiest way to buy it right
For most buyers the Racing Hollow at $299 is the one to start with — calfskin strap, four colourways, nothing to second-guess. If you're weighing leather against a bracelet, the Square pages are where to look: Racing Square at $299 for calfskin, Racing Square Steel at $329 if the bracelet is the point. All four are in stock now in the Agelocer collection, with worldwide shipping and buyer protection on every order — so the only decision left is strap and colour.