C03 Titanium Mag Buckle Quick-Release Band
AULUMU C03 titanium quick‑release Apple Watch band with magnetic buckle
C03 Titanium Mag Buckle Quick-Release Band
C03 Titanium Mag Buckle Quick-Release Band
C03 Titanium Mag Buckle Quick-Release Band
C03 Titanium Mag Buckle Quick-Release Band
C03 Titanium Mag Buckle Quick-Release Band
C03 Titanium Mag Buckle Quick-Release Band
C03 Titanium Mag Buckle Quick-Release Band
C03 Titanium Mag Buckle Quick-Release Band
C03 Titanium Mag Buckle Quick-Release Band
Side angle of AULUMU C03 watch band showing quick-release magnetic clasp and hook-and-loop closure
C03 Titanium Mag Buckle Quick-Release Band

C03 Titanium Mag Buckle Quick-Release Band

Sale price$59.98
Strap Color:Black
Buckle Color:Black
Quantity:

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• Mag Quick-Release System lets you snap on and slide off in one step.
• Titanium alloy buckle with DLC coating is lighter, stronger, and scratch-resistant.
• Dual-secure magnetic lock and hook-and-loop closure ensure firm stability.
• High-density nylon is breathable, soft, and highly durable.
• 1:1 seamless fit aligns perfectly with Apple Watch large models.
• Includes long (170–225 mm) and short (145–180 mm) straps for most wrists.

2026 iF DESIGN AWARD Winner

Metal & Fiber

Your Next-Gen On-Wrist System

Four key features of AULUMU C03 band: high-density nylon, mag quick-release, titanium buckle, and high-curvature case Four square tiles showing AULUMU C03 features: fiber nylon, mag quick-release, titanium buckle, matte body

aulumu Signature Mag Quick-Release System

Quick Wear | Quick Release | Adjustable Length

Hard Lock Soft Bind

Titanium Alloy Buckle + Hook-And-Loop Double Secure

Lightweight but scratch-resistant AULUMU C03 black titanium buckle with DLC coating overview Square crop of AULUMU C03 black titanium buckle with DLC coating, lightweight and scratch-resistant

Breathable Band

Ultra-Fine Nylon Fiber Material

Keep Clean And Dry

Floating Weave Skin Friendly

Seamlessly Integrated

Freely Stretch Adjust As You Wish

Steadiness and Rationality

Two Strap To Most Wrists

Includes both long and short straps—no need for additional purchases.

Brand: aulumu
Product Name: C03 Titanium Mag Buckle Quick-Release Band
Material: Titanium Alloy, Nylon Belt
Weight: Long Strap 32g, Short Strap 31g
Length: Long Strap 205mm, Short Strap 160mm
Color: Black Strap Silver Buckle, Black Strap Black Buckle, Grey Strap Silver Buckle
Compatibility: Support Apple Watch Ultra 1/2/3(49mm), Apple Watch Series 10(46mm), Apple Watch Series 9/8/7(45mm), Series 6/5/4 (44mm), SE(44mm), Series 3(42mm). Fits 145mm-225mm wrist size

  • 5 stars: 27 (100%)
  • 4 stars: 0 (0%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
G
Gregory

Totalmente cómodo, el ajuste es seguro y la correa es bastante estética. La marca es top, ya tengo otros productos y ninguno decepciona.

T
Terry Austin

I have worn an Apple Watch continuously since the earliest days—dating back to the pre–Series 1 era—and in that time I have cycled through an almost absurd variety of bands in search of the elusive balance between comfort, function, and refinement. After more than a decade of daily wear, I can say without hesitation that the Alumu C03 stands apart.What distinguishes this band immediately is its thoughtful ergonomics. It manages to feel substantial without ever becoming intrusive, conforming naturally to the wrist in a way that suggests careful design rather than brute construction. Over long days of wear—teaching, typing, moving about campus—it simply disappears, which is perhaps the highest compliment one can pay a watch band.Equally impressive is the ease with which it can be put on and removed. Many bands over the years have required a minor ritual of adjustment, alignment, or outright patience. The C03, by contrast, feels almost intuitive—secure when fastened, yet effortless to engage and disengage. It strikes that rare balance between reliability and convenience.There is also an understated elegance to its design. It avoids the trap of trying too hard to appear rugged or overly stylized, instead presenting a clean, confident aesthetic that pairs equally well with casual wear or a more professional setting. It feels considered—engineered not just to function, but to belong.After years of experimentation, this is the first band that has made me stop looking for the next one. That alone says everything.

(
( ゚д゚)

このタイプのバンド好きなので満足しています。自分の手首周りは16.5cmです。この商品には長短2つのベルトが付属していますが、長い方のベルトでギリギリまでマジックテープ貼って丁度良い位!これ以上手首細いと時計がグラグラすると思います。試しに短い方と思って着けてみたのですが...確かにぴっちり装着出来ますがマジックテープ貼る部分が3cmくらい余って剥き出しになってしまい見た目的にちょっと...バックル部分は上下どちらでもいけるのでお好みで!

A
Antron

My first product from Aulumu and I absolutely love this band! Highly recommend! The buckle quick release is amazing.

雪国

Ultra本体はシルバーだが、ブラックチタンカラーを購入。特に違和感はなく、ブラックのバックルが格好良い。付け外しは簡単で、装着したままでマジックテープにより細かい調整が出来るため非常に快適。敢えて悪い点を挙げるとすれば、1.長さ調整用に長短2つのバンドが入っているが、長い方は長過ぎて手首が細い人だと端が余ってしまうため使用できず、短い方は逆に短過ぎるためバンドの重なり部分が少なくなってしまい見た目がやや寂しくなる可能性があるため、中間のサイズもあると良いと思った。(幸い自分は長い方で丁度だったので悩まずに済んだ)2.手首内側にあるチタンのバックルが、動いていると骨に当たると感じる場合がある。(マジックテープの微調整によりかなり軽減できる)3.AppleWatchとの接続部分に「UP」と印刷されており、これ自体は付け替える際に裏表が分かりやすく非常に便利なのだが、ブラックチタンカラーの場合、黒地に白色で印刷されており接続部分からほんの少しだけ見える事があり、最初はブラックが擦れて剥げたと思いかなり驚いた。もう少し見えない位置に印刷して欲しかった。といった不満点があるが、もう純正バンドには戻れないと思える商品です。ちなみに純正バンドの不満点は・純正トレイルループ(値段が高い・着け心地は最高だがUltraに対して見た目が寂し過ぎる)・純正アルパインループ(値段が高い・装着が煩わしい・経年で伸びてくるためか毎回どの穴が最適か分かりづらい)

M
Michelle & Kalen

This watch band will catch you off-guard after shopping on amazon through all the poorly fabricated third party bands.The fabric is noticeably softer than expected, comfortable all day, and once you dial in the fit, it’s effortless to put on and take off. The magnetic buckle is chunky in a good way. It adds a rugged, functional look without tipping into tacticool nonsense, and it stays comfortable in real use.The titanium hardware is where this really impressed me. The machining on every piece is precise and clean. Even the connector that slides into the Apple Watch body has extremely tight tolerances, on par with first party Apple bands. That is not easy to pull off. On my Series 11 titanium watch, the match looks intentional, not approximate.Customer support deserves a mention. I emailed with a question and got a fast, thoughtful response from a real person who clearly cared. That matters. I feel confident that if an issue ever comes up, it will be handled properly.For comparison, I’ve tried the Hermès fabric bands in the Apple Store. They cost roughly five times more, are less comfortable, and frankly do not look better. Unless you’re buying a band purely as a luxury status symbol and do not care about comfort or function, I cannot see the appeal.This feels like a grown-up evolution of the Nike sport bands. More refined, more comfortable, more durable, and better looking. I’m genuinely happy with this purchase and would buy again without hesitation.(hmm is this getting auto modded??)

E
Elsa

I can say I have tried the cheap versions of this many many times and they all do the job, however this has far and above proved to me that it was worth every penny. The easiest and most comfortable one I have yet to have. I had always just looked for the general search, then I discovered to filter it out by putting ice range and bang! If you are looking for a super comfortable strap with ease to put on and take off this is your way to go. For you travelers, keep in mind you will get detected at the airport so take it off when going throu the metal detectors.

J
Jeremy Garcia

Honestly really happy with this band, switched from the ocean band and its been my everyday wear since. Never really worry about it coming off at all, the magnets are super strong and the velcro latch is a nice splash of extra security. With how easy and customizable the fit is, I do tend to forget the watch is on sometimes because it really is that comfy. Its a really stylish band and I cant get enough of how good it looks!

D
Denis

Amo essa pulseira. Só tenho uma crítica a fazer. Eu timha o modelo anterior e usava a segunda parte menor, pois o meu pulso tem 17,5cm. Porém, nessa atualização, a parte do engate diminuiu um pouquinho, cerca de 0,5cm, dessa forma as outras partes, principalmente a versão menor deveria ter aumentado proporcionalmente, 0,5 ou 1 cm, pois da forma que ficou, no geral o temanho total diminuiu um pouco, assim usando a segunda parte menor fica muito pequena, no limite, e com a parte maior fica no outro limite, praticamente não dá para usar. Poderiam melhorar isso. Se aumentassem 1 cm na versão menor ficaria ideal, e ainda serviria para a grande maioria das pessoas, até mais do que atualmente.

R
Richard Brice

I love these bands. Comfortable to wear and easy to take on and off.

S
Satoshi

このバンドは本当にいいです。最初の調整のみで、後はワンタッチの着脱です。割とハードな仕事ですが外れることはありません。見た目も気に入ってます。

J
Jeff

My favorite Apple Watch band! I saw a review on YT and gave it a shot. It’s simple, yet sturdy and so comfortable I’ll forget I’m wearing it. It’s been my daily band for months. The material is high quality and has yet to fray. The magnetic clasp is reliable. I’ve been recommending to everyone.

J
John Rang

It’s easily adjustable. Price is not bad. Seems to be durable. It’s my favorite watch band.

m
m4nc1n1

Fantastic band! Worth the money

T
TERRY HARINK

Better quality then expected

しょーう

しっかりした作りで使いやすい

F
Francesco di fiore

Satisfatto

G
Gili Njie

Wenn du nach einem guten Armband sucht, kaufe das hier, eigentlich es ist eine sehr schöne Armband gefällt mir sehr kann man die für alles nutzen

J
June

Phenomenal product with great styling and looks

B
B.A.N.

The Aulumu C03 Snap band is outstanding. It’s incredibly comfortable for all-day wear, looks very cool on the Watch Ultra, and the engineering is impressively precise. The titanium buckle feels premium and solid, and the snap mechanism is secure and satisfying—tight tolerances, no slop, and no “cheap” feel.Overall, it’s a great blend of comfort, function, and design. If you want a band that feels purpose-built for the Ultra (and not just another generic strap), this one delivers.I love this company’s products - none have disappointed!

B
Bruno Martins

Boa bracelete para o Apple Watch, muito confortável e fácil de tirar do pulso e colocar o Apple Watch.

P
Peter G.

Top👌🏻

M
Master Noct

I don’t usually leave reviews for things in general, which honestly I should work on because I am tired of seeing false reviews here.Anyway, in terms of the product itself, I am actually very much enjoying it. It’s super nice feeling, doesn’t catch on my skin or hair like other bands do, it’s extremely easy to take off and yet harder to take off accidentally. The magnetic clasp is a *really* nice feature and makes it SO easy to charge my watch since I just have to undo the hook and loop and pull and it comes right off.The installation was fool-proof, with “Up” indicators on the band parts to avoid installing them upside down, and the triangle makes it easy to orient in the right direction.It comes with both a smaller and longer length band piece, it’s not super wide nor flimsy.I am a sucker for the pattern on the fabric, and the touch of color on the release, I wish they made it in different colors, but the black looks amazing quite frankly.Functionally, it’s a watch band, not much to it, but it’s incredibly adjustable, and easy to adjust too. I’d be surprised if either size they provide doesn’t fit you.Cleaning it hasn’t been a problem, nor it gets dirty that much or even gets a smell. I *personally* wash it on cold with my clothes and it comes out perfect, then let it air dry with a fan on it. No frizzing, unstitching, nothing happening yet. Hopefully it’ll last for at *least* a year if it’s this sturdy even through wash cycles.In terms of price, it *is* quite pricy, but I’d personally say it’s worth it due to the fact it’s replaced my other watch bands in both usability and comfort. It doesn’t dig into my wrist, it doesn’t leave marks on it, it’s simple to flip it around to the back of my wrist and still not get annoyed or irritated with it.I recommend it really. Top notch.

麩庵亭日乗

デザイン的にはultra用と思っていいかと思います。よく似合ってかっこいいです。ステンレスのモデルが半額くらいでありますが、重さがかなりあって装着感が悪く、こちらに買い換えました。着脱の容易さと装着感、デザイン、どこをとっても隙がない完璧なベルトです。いろんなベルトを試しましたが、これ以上はありません。

J
Julio Diaz Cohen

A must have nylon band!

N
Nick

Hi there, could I use this with my apple watch 10 46mm?

aulumu

Hello, thank you for your inquiry. Yes, this watch band is compatible with the 46mm dial of the Apple Watch Series 10.