Fragrance comparison

Eternity Aqua for Men vs The Library Collection Opus I

Notes, accords, longevity, sillage, seasons and community ratings, side by side.

Updated 7 Nov 2026 2,814 ratings analysed

Eternity Aqua for Men

Calvin Klein

3.912,021 votes

Rank #40,952 GreenOzonic

Full profile Similar & dupes

19%scent match

Clearly different

2 wins

The Library Collection Opus I

Amouage

3.96793 votes

Rank #2,576 WoodyWarm Spicy

Full profile Similar & dupes

Quick verdict

Which one should you pick?

The Library Collection Opus I takes 2 of 2 categories.

Eternity Aqua for Men
Choose it for a green and ozonic character.
The Library Collection Opus I
Choose it for a woody and warm spicy character. Wins on ratings & consensus and fragranxe ranking. Best in spring.

Eternity Aqua for Men0/2

The Library Collection Opus I2/2

Ratings & consensus: The Library Collection Opus I
Community sentiment: Not scored
Longevity: Not scored
Sillage & projection: Not scored
Value for money: Not scored
Versatility: Not scored
Note pyramid (duration): Not scored
Fragranxe ranking: The Library Collection Opus I

Head-to-head breakdown

Every category side by side, with the winner called out.

Fragrance

Eternity Aqua for MenCalvin Klein

The Library Collection Opus IAmouage

Winner

Ratings & consensus

Average rating and ownership split

3.91/ 5 · 2,021 votes

3.96/ 5 · 793 votes

Have 73%Had 27%Want 0%

Category winnerThe Library Collection Opus IRating weighted by vote count

Community sentiment

How voters split from love to hate

Not enough votes yet

36%Love

42%Like

6%Ok

16%Dislike

1%Hate

793 votes

Category winnerNot enough dataMost positive mix (25+ votes)

Longevity & sillage

0–100 community performance scores

⏱ LongevityN/A

〰 SillageN/A

♥ Love / hateN/A

⏱ Longevity81

〰 Sillage72

♥ Love / hate74

Category winners

LongevityNo data

SillageNo data

Value for money

How fairly priced voters find it

¤ Price valueN/A

¤ Price value43

Category winnerNot enough dataBest value score

Main accords

Strength of each scent family · outlined = shared by both

green100%

ozonic92%

aquatic84%

woody77%

citrus69%

fresh spicy61%

woody100%

warm spicy92%

white floral84%

sweet77%

aromatic69%

yellow floral61%

Scent match19%Clearly different · both woody

Note pyramid (duration)

Top, heart and base, with how long each lasts when known · gold = shared

Top30 to 45 minutes

CucumberCitrusesGreen NotesLotus

Heart2 to 3 hours

LavenderPlumSichuan PepperVirginia Cedar

Base3 to 5 hours

MuskSandalwoodPatchouliGuaiac Wood

Top

CardamomBitter OrangePlum

Heart

Ylang-YlangTuberoseJasmineRoseLily-of-the-Valley

Base

IncensePapyrusGuaiac WoodTonka BeanSandalwoodVetyverVirginia Cedar

InformationalShared notesPlum, Virginia Cedar, Sandalwood and Guaiac Wood. Durations are only published for Eternity Aqua for Men, so this is not scored.

Seasons & time of day

Relative to each fragrance's best season

No season votes yet

Spring100

Summer0

Fall0

Winter89

Day–

Night–

Category winnerNot enough dataMost year-round

Who wears it

Gender appeal votes

Not enough votes yet

Men12

Unisex50

Women38

InformationalProfile onlyAudience is not scored

Ranking & credits

Fragranxe overall rank, nose and launch

Overall rank#40,952

PerfumerNot listed

Launched—

Reviews0

Overall rank#2,576

PerfumerDaniel Maurel

Launched—

Reviews69

Category winnerThe Library Collection Opus IHigher overall rank

In a nutshell

Description & review snapshot

Eternity Aqua for Men by Calvin Klein is a fresh woody aromatic fragrance built for simple, reliable warm weather wear. The scent introduces itself with a crisp burst of chilled cucumber, bright citruses, watery lotus, and leafy green notes. As the sharp initial freshness softens, a clean heart of lavender, juicy plum…

Reviews →

Amouage Opus I is a rich, complex chypre that blends plum, cardamom, and a heady bouquet of white florals. It settles into a warm, woody base of incense and sandalwood. This unisex fragrance feels artistic and substantial, making it a distinctive choice for formal evening wear or cool autumn days when you want a scent…

Reviews →

InformationalRead bothTaste is personal

How we score: ratings blend public fragrance ratings with Fragranxe member votes; longevity, sillage, value and sentiment are community vote scores, and season bars are relative to each fragrance's strongest season. Categories with too little data are shown but not scored. The scent match weighs accord overlap (60%) and shared notes (40%). More in the FAQ.

Recent comparisons

Head-to-head activity from live history

NO 4 Saffron, Oud, VanillaRosendo Mateu Olfactive ExpressionsRUNNER-UP vs

TurathThe Spirit of DubaiWINNER

1 person compared this today

Lime & NeroliMahdi PerfumesWINNER vs

BanditRobert PiguetRUNNER-UP

1 person compared this today

Plum de VeloursSuperfumistaWINNER vs

Royal FlushTestament LondonRUNNER-UP

1 person compared this today

Malbec IconO BoticárioRUNNER-UP vs

Amber FusionKarakash PerfumeWINNER

1 person compared this today

Common questions

Straight answers from the data above.

Which is better, Eternity Aqua for Men or The Library Collection Opus I?

The Library Collection Opus I takes 2 of 2 categories. Eternity Aqua for Men is rated 3.91/5 from 2,021 votes; The Library Collection Opus I is rated 3.96/5 from 793 votes. Choose Eternity Aqua for Men for a green and ozonic character. Choose The Library Collection Opus I for a woody and warm spicy character. Wins on ratings & consensus and fragranxe ranking. Best in spring.

Do Eternity Aqua for Men and The Library Collection Opus I smell similar?

Clearly different: a 19% scent match on Fragranxe. Both share woody accords. Common notes include Plum, Virginia Cedar, Sandalwood and Guaiac Wood.

What are the notes in Eternity Aqua for Men and The Library Collection Opus I?

Eternity Aqua for Men has top notes of Cucumber, Citruses, Green Notes and Lotus, heart notes of Lavender, Plum, Sichuan Pepper and Virginia Cedar, a base of Musk, Sandalwood, Patchouli and Guaiac Wood. The Library Collection Opus I has top notes of Cardamom, Bitter Orange and Plum, heart notes of Ylang-Ylang, Tuberose, Jasmine and Rose, a base of Incense, Papyrus, Guaiac Wood and Tonka Bean.