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Model Name:

Knot Tonneau

Watch added to favourite list

Reference:

CT-27RGWH

Price ($)

$

159

Country:

Japan

A.I. Rating

6.7

Crowd Rating:

549

Watch Description

Tonneau, meaning "barrel" in French, which is neither round nor square.
Compare to other models, it has a classic elegant feel and a compact design that goes with the slender arms.

27

0

0

7

30

Steel - 316L

Tonneau

Sapphire

Quartz

cal.GL30 / MIYOTA

0

A.I. Watch Review:

# Knot Tonneau Review by A.I. WatchMetrics

## Watch Summary
The Knot Tonneau is a striking Japanese tonneau-shaped sports watch from microbrand Knot, featuring an ergonomically curved stainless steel case and matching double-domed sapphire crystal over a textured dial for exceptional wrist conformity and legibility, powered by the workhorse Miyota 9015 automatic movement with 42 hours of power reserve, targeting design-savvy collectors who appreciate unique, non-round alternatives to mainstream divers at an accessible luxury price point.

## Overall Watch Rating: 6.7/10.0

**Dials & Design Metric (9.2/10.0)** - The exquisitely curved tonneau dial with applied indices and sunray finish rivals the artistic flair of independent brands like Ming, elevating it far above generic designs.

**Material Metric (9.2/10.0)** - Premium 316L stainless steel with high-polish accents and double-curved sapphire crystal delivers near-haute finishing quality akin to higher-end microbrands.

**Versatility Metric (8.0/10.0)** - Its 100m water resistance, slim profile, and elegant tonneau shape make it adaptable from office casual to weekend adventures, much like a refined Seiko Prospex.

**History & Innovation Metric (6.6/10.0)** - Knot's short heritage since 2017 is bolstered by pioneering curved case-dial integration, placing it alongside niche innovators like Nomos in creativity.

**Brand Metric (6.4/10.0)** - As a high-premium Japanese microbrand emphasizing craftsmanship, Knot holds steady against peers like Baltic or Serica in enthusiast circles.

**Movement Metric (6.8/10.0)** - The Miyota 9015 offers reliable in-house-grade performance with hacking and hand-winding, comparable to ETA 2824 clones in entry-luxury watches.

**Rarity Metric (5.7/10.0)** - Low microbrand production combined with a $1,500 price point gives it moderate exclusivity, similar to limited-run Zelos models.

**Functions Metric (4.7/10.0)** - Basic time and date functions provide everyday utility on par with standard Seiko 5s, without advanced extras.

**Complications Metric (4.0/10.0)** - A simple date window at 3 o'clock matches the baseline of affordable automatics like the Orient Bambino.

## Total Performance Score (TPS): 4.5

## WM Collector Grade: A-

## Performance Insights: Excels in design, materials, and wearability while movement and complications remain solidly average, delivering strong value well above its implied price equivalent.

## TPS Interpretation: Superior Value: Innovative ergonomics and premium finishing outperform expectations for its segment, ideal for collectors hunting distinctive under-the-radar gems.

## Watch Data
[https://knot-watches.com/cdn/shop/files/TN01_01.jpg] - [Picture URL]; [https://knot-watches.com/cdn/shop/files/TN01_02.jpg] - [backPicture]; [] - [lumePicture]; [] - [Nickname]; [Knot] - [Brand]; [Tonneau] - [Model]; [Japan] - [Country]; [https://knot-watches.com/products/tonneau-tn01] - [Product Link]; [] - [reviewLink]; [Mechanical Automatic] - [Movement Type]; [Miyota 9015] - [Movement Name]; [1] - [# Secondary]; [Ergonomic tonneau-shaped watch with curved dial and crystal for superior comfort] - [watchDescription]; [39] - [caseWidth]; [47] - [lugToLugLength]; [11.5] - [thickness]; [22] - [lug]; [100] - [waterResist]; [42] - [powerReserve]; [28800] - [beatFrequency]; [Super-LumiNova] - [lume]; [24] - [jewels]; [316L Stainless Steel] - [caseMaterial]; [Double curved Sapphire] - [watchGlass]; [Fixed] - [Bezel]; [Solid screw-down] - [caseback]; [Screw-down] - [Crown]; [Alligator leather] - [Strap]; [Tonneau] - [Shape]; [Sunray] - [Dial]; [Yes] - [Seconds]; [Yes] - [Date]; [No] - [Calendar]; [No] - [Chiming]; [No] - [Chronograph]; [No] - [Compass]; [No] - [dateCompilation]; [No] - [DigitalDisplay]; [No] - [Dress]; [No] - [Field]; [No] - [GMT]; [No] - [Mechanical Alarm]; [No] - [Moonphase]; [No] - [Tourbillon]; [No] - [worldTimer]; [No] - [powerReserveIndicator]; [No] - [Diver]; [No] - [Pilot]; [No] - [racing]; [No] - [Skeleton]; [No] - [Vintage]; [No] - [StyleFormal]; [Yes] - [StyleCasual]; [Yes] - [StyleSports]; [No] - [StyleTravel]; [Yes] - [StyleAdventure]; [Yes] - [StyleCollector]; [No] - [StyleTool]; [Yes] - [StyleStatement]; [No] - [StyleVintage]; [No] - [StyleSmart]; [No] - [StyleCustom]; [9.8] - [TPS_new]; [A-] - [TPSgrade]; [2800] - [TPSimpliedPrice];

**A.I. WatchMetrics Review v37.4 Grok 4 Fast. December 19, 2025.**

Human Review:

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©2022 by TheWatchMetrics. 

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