The Agelocer Free-Sprung Tourbillon Diamond exists in three separate listings: a $999 version on crocodile leather, a $1,029 version called "Steel," and a $1,029 version on an actual stainless steel bracelet called "Blue Steel." All three run a hand-wound flying tourbillon with an 80-hour power reserve. Nothing else online compares the three side by side, so here's what the catalog data actually says about each, where the real differences sit, and which one to buy.
Verdict: all three Agelocer Diamond Tourbillon variants are listed with a manual-wind flying tourbillon and an 80-hour reserve (Cal.A9001 on the Leather and Steel, Cal.9001 on the Blue Steel). The choice is really about weight and strap — not mechanics.
- Lightest, most wearable: Agelocer Free-Sprung Tourbillon Diamond Leather — $999, 66.8g on crocodile-pattern leather.
- Rose Gold variant names: Agelocer Free-Sprung Tourbillon Diamond Steel — $1,029, in Blue Rose Gold or Black Rose Gold. Its spec sheet lists a leather strap but its photos show a bracelet, so check the product page before ordering.
- Actual metal on the wrist: Agelocer Free-Sprung Tourbillon Diamond Blue Steel — $1,029, 132g on a 316L steel chain.
- Flying tourbillon and 80-hour reserve, no stones, less money: Agelocer Free-Sprung Manual Flying Tourbillon — $799.
Skip it if you want a stated diamond carat weight, clarity grade, or stone count — none of the three listings publish one. Read on for what they do say.

The Agelocer Free-Sprung Tourbillon Diamond Leather, $999 — 40mm, 10mm thick, 66.8g on crocodile-pattern leather. It's photographed with a rose-gold-toned case, but the listing names its colour options Blue Silver and Silver Black, so check the variant photos before ordering.
Is the Agelocer Diamond Tourbillon worth it?
Yes, if you want a genuine hand-wound flying tourbillon with diamond-set accents for under $1,100. The $799 Free-Sprung Manual Flying Tourbillon has the same 80-hour reserve and 40mm case but no stones; the $200 to $230 extra buys the diamond-set design plus a crocodile-pattern strap and folding buckle (Leather) or a steel chain bracelet and butterfly buckle (Blue Steel).
That framing matters because a tourbillon at this price is already the unusual part. A tourbillon's whole job is to average out the effect of gravity on a watch's rate by continuously rotating the balance and escapement inside a cage — normally a feature reserved for watches costing many times more. If you want the full plain-English breakdown of what that mechanism is actually doing, see what a tourbillon is and what it really costs. Here, Agelocer pairs that complication with a diamond-set design for $999 to $1,029.
Is the Agelocer Diamond Tourbillon automatic, and what movement is inside it?
No — every version here is hand-wound, not automatic. The Leather and Steel listings name the calibre Cal.A9001; the Blue Steel and the $799 plain tourbillon name it Cal.9001, rated at 28,800 vph (4Hz). All four state an 80-hour power reserve, and each lists a flying tourbillon — one whose rotating cage has no bridge across its face.
"Hand-wound" means you turn the crown yourself on a schedule rather than letting wrist motion do it, which is standard for tourbillons at this price — see how to wind and set a tourbillon without damaging it before you do it the first time. Agelocer also calls the movement "free-sprung." In general watchmaking terms, that means the balance has no regulator arm on the hairspring, so the rate is adjusted at the balance wheel itself. Agelocer doesn't publish how its own balance is adjusted, so read that as the general definition, not a listed spec. For how this calibre fits among Agelocer's wider range, see Agelocer movements by model.

Cal.A9001, hand-wound, 80-hour power reserve — on the Leather and Steel listings; the Blue Steel and the $799 plain model list Cal.9001, with the same 80-hour reserve.
Leather, Steel or Blue Steel — which Agelocer Diamond Tourbillon should you buy?
Buy the $999 Leather for the lightest, most comfortable everyday wear at 66.8g. Buy the $1,029 Steel if you want the rose-gold-toned Blue Rose Gold or Black Rose Gold colourways, after checking which strap its product page shows. Buy the $1,029 Blue Steel if you want an actual steel bracelet and don't mind the extra weight — at 132g it is roughly double the Leather's listed 66.8g.
Read the "Steel" listing carefully before you order it: its spec sheet repeats the Leather's details word for word (crocodile-pattern leather strap, 316L stainless steel folding buckle, 66.8g, 10mm), yet its product photos show the watch on a rose-gold-toned link bracelet with a signed folding clasp. The listing doesn't resolve that conflict, so check the strap shown on the product page before you order. The listed colour names do differ — Blue Rose Gold or Black Rose Gold on the Steel versus Blue Silver or Silver Black on the Leather — though the Leather listing's own photos also show a rose-gold-toned case, so compare the variant photos on both pages. If you want a bracelet that the spec sheet actually lists (316L stainless steel chain, butterfly buckle, 132g), that's the Blue Steel.
| Model | Price | Movement | Case / thickness | Strap | Weight | Who it suits |
|---|---|---|---|---|---|---|
| Diamond Leather | $999 | Cal.A9001, manual | 40mm / 10mm | Crocodile-pattern leather | 66.8g | Lightest everyday wear |
| Diamond Steel | $1,029 | Cal.A9001, manual | 40mm / 10mm | Listed as crocodile-pattern leather (photos show a rose-gold-toned bracelet) | 66.8g (as listed) | Rose-gold-toned look; confirm strap before ordering |
| Diamond Blue Steel | $1,029 | Cal.9001, manual | 40mm / 9.7mm | 316L steel chain | 132g | Bolder, metal-on-wrist presence |
| Plain Flying Tourbillon | $799 | Cal.9001, manual | 40mm / 9.7mm | Cowhide leather | 63.5g | Budget entry, no stones |

Left: the Leather's crocodile-pattern strap and rose-gold-toned buckle. Right: the Steel as photographed on its own listing, on a rose-gold-toned bracelet, even though its spec sheet lists leather.
How heavy is the Agelocer Diamond Tourbillon?
It depends entirely on which strap you pick. The Leather is listed at 66.8g on crocodile-pattern leather. The Steel's spec sheet gives the same 66.8g, but its photos show a bracelet, so treat that figure with caution. The Blue Steel bracelet version weighs 132g — essentially double, because you're carrying a full 316L stainless steel chain instead of a thin leather strap.
For comparison, the plain $799 Free-Sprung Manual Flying Tourbillon on cowhide leather weighs 63.5g — the lightest of the four. If you've worn a steel-bracelet tourbillon before and know you're comfortable at that weight, the Blue Steel is a deliberate trade: more wrist presence for roughly double the mass. If you haven't, the 66.8g Leather is the safer first choice.

The Blue Steel's 316L steel chain and folding clasp — 132g, versus 66.8g for the same watch on leather.
How thick is the Agelocer Diamond Tourbillon, and which wrist size fits?
The Leather and Steel cases are listed at 10mm thick, wearing length 170–210mm. The Blue Steel case is slightly slimmer at 9.7mm, with a wider listed wearing-length range of 150–210mm. All three keep the same 40mm case diameter and 20mm strap width.
If your wrist sits near the bottom of that 150mm mark, the Blue Steel's bracelet gives you more room to size it down than the Leather or Steel's fixed 170mm minimum. Anyone comparing tourbillons specifically for a bracelet fit should also look at our roundup of tourbillon watches on a steel bracelet, which covers more bracelet options beyond this diamond trio.
Is the diamond tourbillon worth more than Agelocer's plain Free-Sprung Tourbillon?
Only if the stones are the point. Over the $799 Free-Sprung Manual Flying Tourbillon, the extra $200 (Leather, $999) or $230 (Blue Steel, $1,029) buys a diamond-set design plus a crocodile-pattern strap or steel bracelet, not a better-specified movement. Both list a flying tourbillon with an 80-hour reserve, and the $799 publishes a 50m water-resistance figure the Diamond Leather doesn't. Agelocer also lists a Free-Sprung Tourbillon Leather at the same $999, with the same 40mm case, 66.8g weight and Cal.A9001 movement. Its photos show a diamond-set bezel too, so treat it as a twin listing rather than a cheaper plain alternative.
That second comparison is worth knowing before you shop: the Agelocer Free-Sprung Tourbillon Leather ($999) carries a spec sheet identical to the Diamond Leather's and is photographed with the same diamond-set bezel, so there's no stone-free saving to be had at $999. The $799 Free-Sprung Manual Flying Tourbillon is the one genuinely different build: 9.7mm thick, 63.5g, cowhide leather and a pin buckle rather than a folding buckle, and it's the one to read about in full in our Agelocer Free-Sprung Flying Tourbillon review.

The plain Agelocer Free-Sprung Manual Flying Tourbillon, $799 — Cal.9001 flying tourbillon, same 80-hour reserve, no stones, 63.5g.
Is the Agelocer Diamond Tourbillon waterproof?
Only one version publishes a figure. The Blue Steel listing states a water-resistance figure: 50m (5ATM). The Leather and Steel listings don't publish a rating at all. Agelocer doesn't say which activities that 50m rating covers, so check the Blue Steel's product page before taking it near water, and treat the Leather and Steel as unrated.
If swim-proofing matters to your decision, that's a point in favour of the Blue Steel over the Leather or Steel simply because it's the only one of the three with a stated figure at all — not because the listing says what that rating covers.
What don't the Agelocer Diamond Tourbillon listings tell you about the diamonds?
Carat weight, stone count and clarity grade. The Leather and Steel pages describe "a diamond design," and the Blue Steel page says "diamond-set accents" — neither states how many stones, how large, or what grade. We won't guess at numbers Agelocer itself hasn't published, so treat the diamond detail as decorative, not a certified gemstone claim.
That gap isn't new — we flagged the same missing stone detail in our roundup of affordable diamond watches for men under $1,000. If a documented carat weight and clarity grade is a requirement for you rather than a nice-to-have, this isn't the watch, and no page selling it — ours included — can honestly give you one. Worth checking the authenticity of any tourbillon you buy, diamonds or not, with how to tell if a tourbillon is real in 60 seconds.

The Blue Steel on-wrist — "diamond-set accents," per Agelocer's own listing, with no stated carat or stone count.
Agelocer tourbillon diamond: leather or steel bracelet — which wears better day to day?
For all-day comfort, leather wins: the $999 Leather is listed at 66.8g, about half the weight of the bracelet-equipped Blue Steel. The $1,029 Blue Steel bracelet weighs 132g and suits someone who wants the heft and shine of a metal watch and is used to wearing one that size.
Who should buy the Agelocer Diamond Tourbillon — and who should skip it?
Buy it if you want a genuine hand-wound flying tourbillon with diamond trim and don't need swim-rated water resistance or a documented stone grade. Skip it if you want an automatic movement, certified diamonds, or a stated swim rating — none of the three listings state any of those.
If none of the three variants quite fits, the $799 Free-Sprung Manual Flying Tourbillon gets you a hand-wound flying tourbillon with the same 80-hour reserve, without stones, and the wider Agelocer collection covers the rest of the brand's range if diamonds aren't actually the deciding factor. For the broader men's range on this site, start at men's watches.
All three Agelocer Diamond Tourbillon listings are in stock now, ship worldwide, and come with buyer protection through PrimeTimepiece — so once you've picked leather, Steel or Blue Steel on weight and strap alone, the next step is the product page: see the $999 Agelocer Diamond Tourbillon on leather or see the $1,029 Diamond Blue Steel on its steel bracelet. If you're leaning toward the Steel, confirm the strap shown on its page first.