Sky 11 by CA Perfume

What Smells Like Opus 1144.
Best Alternatives (2026 Guide)

Sky 11 by CA Perfume is inspired by Opus 1144, offering a long-lasting fragrance experience of up to 6 hours. This HumanSafe™ verified scent is available in Oil, EDP Spray, and Duo Set formats, providing versatility for every occasion.

Woody AromaticambercitruspowderybalsamicvanillaFreshRomantic
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Why It Became Iconic

Why Opus 1144
Became an Icon

Opus 1144 is a tribute to Gothic architecture, specifically the Basilica of Saint Denis, which laid its first stone in 1144. This fragrance captures the grandeur and mysticism of Gothic art, transporting wearers to a time of sacred artistry and timeless devotion. Its complex composition reflects the artistic passions of its creator, Filippo Sorcinelli, making it a unique addition to the world of niche fragrances.

Opus 1144 is characterized by its rich amber and powdery notes, combined with a citrusy freshness that makes it distinctive. The fragrance's unique blend evokes the essence of Gothic artistry, making it a sought-after scent for those who appreciate complex and artistic compositions. Its ability to transport wearers to a mystical realm contributes to its lasting appeal.

UNUM
The House Behind The Original

UNUM

UNUM is a niche perfume house founded by Filippo Sorcinelli in 2013. Known for its artistic fragrances, UNUM draws inspiration from Gothic art, music, and photography. The brand's creations are characterized by their unique and complex compositions, reflecting Sorcinelli's diverse artistic passions. UNUM aims to create scents that are not only perfumes but also pieces of art.

Learn more
Filippo Sorcinelli
The Perfumer Who Created The Original

Filippo Sorcinelli

Filippo Sorcinelli is an Italian perfumer and designer known for founding UNUM. His work is deeply influenced by Gothic art and culture, which is evident in the intricate compositions of his fragrances. Sorcinelli's artistic vision allows him to create unique scents that resonate with the themes of beauty, spirituality, and history.

How We Build
Our Version?

Some fragrances become popular because they are extraordinary. Others become challenging once people try to live with them.

At CA Perfume, we study both sides — admiration and frustration — before we create anything. Not every fragrance deserves an interpretation. Here is how we decide & develop.

1
We Track the Market Signals

How Popular Is
the Original?

Before creating our version, we look at real-world demand — not hype, not trends, but sustained signals that tell us a fragrance has earned its place in people's lives.

Popularity is only one signal we consider. Sometimes a fragrance is selected because it has become a lasting bestseller; other times, it has been discontinued while still maintaining a loyal customer base. In both cases, what matters is clear, sustained demand.

Culturally Established
A benchmark fragrance with years of sustained demand — not a trend, a permanent fixture.
Discontinued
A loyal customer base left without access — demand is real, supply is gone.
Out of Reach
People want it — but the price, availability, or format puts it beyond everyday reach.
Only when a fragrance shows sustained relevance — not a spike — do we decide to develop our interpretation.
1021+ Verified Global Reviews
4.14 / 5 Average Rating Across Platforms
Monthly How Often We Refresh These Signals
2
We Listen to Real Wearers

What Do People
Love — and Dislike?

Popularity tells us a fragrance matters. Reviews tell us where it falls short. We study thousands of verified opinions to find both — because our design brief comes directly from what real people said, not assumptions.

✓ What They Love
  • Fresh and airy scent profile
  • Long-lasting performance
  • Unique and artistic composition
  • Versatile for various occasions
  • Comfortable for daily wear
✗ What They Dislike
  • Heavily powdery and vintage-leaning profile
  • Strong resemblance to other fragrances
  • Not suitable for warm weather
  • Polarizing scent profile
  • Limited availability
We Kept
The unique ozonic freshness
Long-lasting sillage
Artistic and complex composition
Versatility for day and night
Comfortable wearability
We Solved
Lightened the overall composition
Enhanced projection for better sillage
Offered a variety of formats
Improved wearability in warm weather
Made it more accessible
Our Design Brief

Keep the magic.
Eliminate the negatives.

We design for everyday wear — not just for impact. The original deserves to be worn on a Tuesday, not saved for special occasions.

Verified Reviews Analysed
1021+
across Amazon, Fragrantica, Sephora, Walmart
3
We Study the Structure

How Do We Analyse
the Formula?

Before we mix a single drop, we map the original fragrance's composition using GC-MS analysis — Gas Chromatography-Mass Spectrometry — to understand exactly what is present, at what concentration, and why it behaves the way it does on skin.

Then every ingredient goes through the HumanSafe™ evaluation system. Not just "is this permitted?" — but "is this genuinely good for your body at daily wear concentrations?"

Retain
Safe, functional, essential to the character. It stays.
Monitor
Acceptable at current levels. Tracked across every reformulation.
Replace
Substituted with a safer ingredient that does the same olfactory job.
The character stays intact. The risk does not follow it into the formula.
1
Stage 1
Original Ingredients
GC-MS Analysis
2
Stage 2
HumanSafe™ Evaluation
Retain · Monitor · Replace
3
Stage 3
CA Clean Formula
4
We Map the Mood

How Does It Make
You Feel?

A fragrance isn't just a scent — it's a psychological environment you carry with you. Every fragrance we work with gets mapped across six emotional dimensions through HumanSafe's Mood Architecture™ Index.

The map gets built two ways: through established olfactory and psychoacoustic research, and through a live human panel who wear samples blind and score each dimension independently. Our version has to match the original's mood profile — not just in scent, but in the feeling it creates.

Primary Mood Fresh
Secondary Mood Romantic
Inner Voice I am free.
Confidence
4.44
Presence
4.26
Mood Lift
5.4
Identity
4.14
Warmth
4.74
Social Ease
5.32
Energy
2.79
5
We Benchmark Against the Original

How Do We Know
Ours Holds Up?

Before any version leaves our lab, it goes through a structured comparison process — not just against the original reference, but also against leading competitors.

We don’t ask “does it smell nice?” We ask: does it perform comparably, note by note, hour by hour — and how does it stand in a blind test against both the original and the marke

We only release a version when it can stand next to the original — and hold its own.
1
Expert Analysis

A trained evaluator breaks down both fragrances side by side — top, heart, and base notes — and tracks longevity, projection, and development arc over 8 hours.

2
Blind Panel Test

Real people. One on each wrist. No labels, no context — just the scent. They choose which one they prefer. We only move forward when the result is genuinely competitive.

Our Final Interpretation

We Proudly Present
Sky 11

3 Years in Development
We Kept
  • The unique ozonic freshness
  • Long-lasting sillage
  • Artistic and complex composition
  • Versatility for day and night
  • Comfortable wearability
We Improved
  • HumanSafe™ verified for safety
  • Available in multiple formats
  • Balanced scent profile for wider appeal
  • Designed for everyday versatility
  • Enhanced layering potential
Sky 11 — Lake & Sky Sky 11 11 Alternative Perfume
Sky 11 Sky 11 — Lake & Sky Sky 11 11 Alternative Perfume — EDP Spray
$60.00 $32.99SAVE 45%

Size: 1.7 FL OZ / 50 ML

Sky 11 — Lake & Sky Sky 11 11 Alternative Perfume
Sky 11 Sky 11 — Lake & Sky Sky 11 11 Alternative Perfume — Body Oil
$39.00 $18.99SAVE 51%

Size: 1.7 FL OZ / 50 ML

Sky 11 — Lake & Sky Sky 11 11 Alternative Perfume
Sky 11 Sky 11 — Lake & Sky Sky 11 11 Alternative Perfume — Layering Set
$69.00 $32.99SAVE 52%

Size: 1.7 FL OZ / 50 ML

Compare Side-by-side

Opus 1144 vs Sky 11

Same emotional signature. Cleaner formula. A fraction of the price. Here is exactly how the two compare — nothing hidden.

Comparing
Opus 1144
Opus 1144
Filippo Sorcinelli
Sky 11
Sky 11
CA Perfume
HumanSafe™
Price
Starting from€220,00for 100ml
Starting from —
Longevity
6–8 hours (community reported)
6–8 hours (Oil) / 4–6 hours (EDP)
Skin Safety
Not DisclosedStandard luxury formulation — ingredient transparency not publicly disclosed.
HumanSafe™ VerifiedNo phthalates, no parabens, IFRA compliant.
Mood Index
Not MEI™ ScoredReference benchmark only.
MEI™ ScoredSee HumanSafe's Mood Architecture™ profile above.
Top Notes
elemi,Bergamot,Mandarin Orange,Jasmine
Ozonic
Heart Notes
Iris,Cashmere Wood,Orchid
Amberwood
Base Notes
Vanilla,Benzoin,Ambergris,White Musk,Sandalwood
White Musk
Opus 1144
Opus 1144
Filippo Sorcinelli
Price
€220,00for 100ml
Longevity
6–8 hours (community reported)
Safety
Not Disclosed
Mood
Not MEI™ Scored
Top
elemi,Bergamot,Mandarin Orange,Jasmine
Heart
Iris,Cashmere Wood,Orchid
Base
Vanilla,Benzoin,Ambergris,White Musk,Sandalwood
Sky 11
Sky 11
CA Perfume
HumanSafe™
Price
—
Longevity
6–8 hours (Oil) / 4–6 hours (EDP)
Safety
HumanSafe™ VerifiedNo phthalates, no parabens, IFRA compliant.
Mood
MEI™ Scored
Top
Ozonic
Heart
Amberwood
Base
White Musk
Perfecting the Scent

How to Wear Sky 11 Like a Pro

Sky 11 is best worn during the day, particularly in spring and summer when its fresh notes shine. It can be layered for added depth or worn alone for a light, airy experience.

Seasonal styling guide
Seasonal & Styling Guide

When & Where
to Wear It

Ideal for daytime wear, Sky 11 is perfect for casual outings and warm weather.

Embrace the freshness of spring with Sky 11, enhancing your outdoor adventures.
A versatile fragrance that fits seamlessly into your daily routine.
Layer with a warm base for a romantic evening.
Perfect for a professional setting, offering a subtle yet impactful scent.
Application guide
Application Guide

Apply for Maximum
Longevity

Proper application enhances the longevity and projection of Sky 11. Apply to pulse points for the best effect.

Apply to pulse points such as wrists and neck for optimal diffusion.
Spray from a distance of 6-8 inches for an even application.
Layer with complementary scents for a unique fragrance experience.
Apply after showering when skin is still damp for better absorption.
The Art of Layering

Layer Sky 11
for a Signature Scent

Art of layering

Sky 11 layers beautifully with other scents, enhancing its unique profile. Consider combining with warm or floral notes for a balanced experience.

Layer with Vanilla

Adds a sweet and comforting touch, enhancing warmth.

Layer with Fresh Florals

Brightens the fragrance, adding a lively twist.

Layer with Woods or Resins

Deepens the scent, creating a rich and complex profile.

Need to Know

Frequently Asked Questions

Comparing Sky 11 with Opus 1144 — longevity, performance & value.

Sky 11 offers a fresh ozonic scent with amberwood and white musk, while Opus 1144 is characterized by its rich amber and complex floral notes.

A dupe replicates the original scent closely, while an inspired-by fragrance captures the essence without exact duplication. Sky 11 is inspired by Opus 1144, offering a unique interpretation.

Sky 11 lasts approximately 6–8 hours, making it a reliable choice for daily wear.

Sky 11 has a moderate sillage, providing a pleasant scent trail without being overwhelming.

Sky 11 is ideal for spring and summer wear, thanks to its fresh and airy notes.

Yes, Sky 11 is a subtle yet sophisticated fragrance, making it perfect for professional settings.

Absolutely! Sky 11's light and fresh profile makes it a great choice for romantic evenings.

Yes, Sky 11 layers beautifully with other scents, enhancing its unique profile.

Apply Sky 11 to pulse points like wrists and neck for optimal diffusion and longevity.

Sky 11 offers an affordable alternative with a unique scent profile, making it accessible for daily wear.

Yes, Sky 11 is HumanSafe™ verified, formulated without phthalates and parabens.

Sky 11 is designed to be a mood-boosting fragrance, promoting feelings of freshness and confidence.

Sky 11 is available in Oil, EDP Spray, and Duo Set formats, catering to different preferences.

To enhance longevity, apply Sky 11 after showering when your skin is still damp.

Yes, Sky 11's fresh profile makes it suitable for warm weather wear.

Make It Yours

Find Your Signature
Scent Today

Experience the warmth, elegance, and lasting presence that have made this fragrance style unforgettable. Discover your perfect size and make it part of your daily ritual.

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