Knot Watches AT1-40SSVvsFormex Reef 42 mm

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Measurements

Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

Knot Watches AT1-40SSV at true scale

AT1-40SSV

Formex Reef 42 mm at true scale

Reef 42 mm

Diameter

40mm

42mm

Lug-to-Lug

n/a

47mm

Thickness

11mm

lowest

11.4mm

Water Resistance

200m

300m

highest

Power Reserve

42h

56h

highest

MSRP

$869

lowest

$2,414

Movement

Miyota 9015

Sellita SW300-1

Case

5 specs
Diameter
40mm
42mm
Thickness
11mm
11.4mm
Lug-to-Lug
n/a
47mm
Lug Width
n/a
22mm
Water Resistance
200m
300m

Crystal & Dial

2 specs
Dial Color
n/a
Black
Lume
None
Super-LumiNova

Movement

2 specs
Caliber
Miyota 9015
Sellita SW300-1
Power Reserve
42h
56h

Pricing

1 specs
MSRP
$869
$2,414
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Reviews

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Knot Watches AT1-40SSV

Owners widely praise the Knot Watches AT1-40SSV for its solid build quality, clean aesthetic, and good finish, with the small seconds hand accurately hitting its markers. The 40mm case size is generally considered good, though one owner felt it wore "a tad on the small side." Opinions on the included straps are divided, with some appreciating their unique Japanese fabrics and leathers and finding them soft and ready-to-wear, while others express disappointment with their quality and note they can be stiff initially. One owner also flagged the small crown as a nitpick due to its low placement. Overall, owners rate the Knot Watches AT1-40SSV highly for its overall quality and finish at the price point.

Formex Reef 42 mm

Owners widely praise the Formex Reef 42 mm for its comfortable bracelet with a micro-adjust clasp and its overall build and finish, with one owner strongly recommending it. Reviewers highlight its impressive wearability and versatility, noting the COSC-certified Sellita SW300-1 movement and well-finished bracelet. One owner found the lugs' taper hinders third-party strap fit and observed the seconds hand does not perfectly align with markers. On balance, owners and reviewers rate the Formex Reef 42 mm highly for its comfortable bracelet and solid build at its price point.