Certina DS-7 Chrono AutovsKnot Watches ATC-40

ATC-40
Knot WatchesATC-40

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

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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.

Certina DS-7 Chrono Auto at true scale

DS-7 Chrono Auto

Knot Watches ATC-40 at true scale

ATC-40

Diameter

42mm

40mm

Lug-to-Lug

49.5mm

n/a

Thickness

14.9mm

13.5mm

lowest

Water Resistance

100m

100m

Power Reserve

n/a

45h

MSRP

$2,083

$1,257

lowest

Movement

Tissot Valjoux A05.231

Seiko NE88

Case

5 specs
Diameter
42mm
40mm
Thickness
14.87mm
13.5mm
Lug-to-Lug
49.5mm
n/a
Lug Width
10.5mm
n/a
Material
Stainless Steel
316L Stainless Steel

Crystal & Dial

1 specs
Dial Color
n/a
Red

Movement

2 specs
Caliber
Tissot Valjoux A05.231
Seiko NE88
Power Reserve
0h
45h

Pricing

1 specs
MSRP
$2,083
$1,257
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Reviews

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

Certina DS-7 Chrono Auto

Owners and reviewers widely praise the Certina DS-7 Chrono Auto for its retro 1970s-inspired design, featuring a waffle-style dial with raised sub-dial rings and a contrasting red seconds hand, all housed in a refined 42mm brushed steel case. The watch is noted for its excellent finishing and sporty aesthetic, with some owners remarking that it wears smaller than its 42mm case size due to its thinness for an automatic. The integrated bracelet is generally well-received, though one reviewer found the included strap to be cheap, uncomfortable, and an impractical 21mm width. The automatic movement is cited as a robust Valjoux A05.231 with a 68-hour power reserve, and the watch is considered a great value. One owner notes the movement beats at 21,600 bph, resulting in a more noticeable tick rather than a smooth sweep. On balance, owners and reviewers rate the Certina DS-7 Chrono Auto highly for its attractive retro design and excellent value proposition.

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.