Knot Watches ATC-40vsLongines AVIGATION BIGEYE

ATC-40
Knot WatchesATC-40

Ref. atc-40svjprdgs-ld-16svsv·MSRP $1,257

AVIGATION BIGEYE
LonginesAVIGATION BIGEYE

Ref. L2.816.1.93.2·MSRP $4,400

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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 ATC-40 at true scale

ATC-40

Longines AVIGATION BIGEYE at true scale

AVIGATION BIGEYE

Diameter

40mm

41mm

Lug-to-Lug

n/a

48.7mm

Thickness

13.5mm

lowest

14.5mm

Water Resistance

100m

highest

30m

Power Reserve

45h

n/a

MSRP

$1,257

lowest

$4,400

Movement

Seiko NE88

Longines L688.5

Case

6 specs
Diameter
40mm
41mm
Thickness
13.5mm
14.5mm
Lug-to-Lug
n/a
48.7mm
Lug Width
n/a
20mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
100m
30m

Crystal & Dial

1 specs
Dial Color
Red
Blue

Movement

2 specs
Caliber
Seiko NE88
Longines L688.5
Power Reserve
45h
0h

Pricing

1 specs
MSRP
$1,257
$4,400
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Reviews

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

Knot Watches ATC-40

Knot Watches ATC-40 owners widely praise its case finishing, with one noting Sallaz polishing that distinguishes it from competitors, and appreciate the value and craftsmanship at its price point. The watch is described as well-made with a discrete dial featuring subtle gold and silver powder, and a modern look complemented by a deep burgundy textured dial and refined mesh bracelet. While some find it wears smaller than its 40mm case size, one owner dislikes the 18mm lug width, and another notes the premium strap is stiff but well-made with a nice deployment buckle. A reviewer also points out the very small crown appears undersized and poorly placed near the bottom of the case. Overall, owners rate the Knot Watches ATC-40 highly for its craftsmanship and value, with its distinctive case finishing being a significant draw.

Longines AVIGATION BIGEYE

Owners and reviewers widely praise the Longines Avigation Bigeye for its vintage military aesthetic, legible dial with a unique "big eye" subdial, and tactile chronograph pusher action. The 41mm steel case wears well, and the boxed sapphire crystal is a notable feature. However, some find the 14.45mm thickness typical for its movement, and the 30-minute sub-dial's three-minute hash marks can compromise reading speed. The stock strap is generally considered unremarkable, and the lack of drilled lugs makes strap changes less convenient. Some owners report minor QC issues with chronograph hand alignment and a loud rotor. Overall, owners rate the Longines Avigation Bigeye highly for its cohesive vintage design and appealing chronograph functionality at its price point.

From video reviewers

The titanium case offers exceptional lightness and balance on the wrist. Reviewers did not reach a consensus on any weaknesses.