Knot Watches Knot AT1-40SSVvsSeiko Prospex Sea

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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 Knot AT1-40SSV at true scale

Knot AT1-40SSV

Seiko Prospex Sea at true scale

Prospex Sea

Diameter

40mm

43.8mm

Lug-to-Lug

n/a

48.7mm

Thickness

11mm

lowest

12.8mm

Water Resistance

200m

200m

Power Reserve

42h

highest

41h

MSRP

$628

$625

lowest

Movement

Miyota 9015

Seiko 4R35

Case

5 specs
Diameter
40mm
43.8mm
Thickness
11mm
12.8mm
Lug-to-Lug
n/a
48.7mm
Lug Width
n/a
22mm
Material
316L Stainless Steel
Stainless Steel

Crystal & Dial

3 specs
AR Coating
n/a
Anti-reflective coating on inner surface
Dial Color
Black
n/a
Lume
None
LumiBrite on hands, index(es) and bezel

Movement

3 specs
Caliber
Miyota 9015
Seiko 4R35
Power Reserve
42h
41h
Jewels
24
23

Pricing

1 specs
MSRP
$628
$625
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Reviews

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

Knot Watches Knot AT1-40SSV

Owners widely praise the Knot AT1-40SSV for its versatile 40mm size and excellent wearability, with many appreciating its surprising lightness and the clean dial design. The lume is noted as strong, and accuracy is reported around +4 seconds per day. Some owners find the initial stiffness of the premium strap a minor issue, though its well-machined buckle is well-regarded. One owner flags the small crown as a significant drawback due to its size and placement. On balance, owners rate the Knot AT1-40SSV highly for its comfortable wearability and attractive dial at the price point.

Seiko Prospex Sea

The Seiko Prospex Sea is widely praised for its excellent value as a sport watch, with owners highlighting its comfortable wearability and generous lume. Reviewers note its solid build quality and attractive design, with some specifically mentioning the matte black dial as a strong point. One owner reports accuracy around +1 to +2 seconds per day. The 43.8mm case size is considered substantial by some, and one owner found the watch heavy and thick, regretting not choosing a different variant. Overall, owners and reviewers rate the Seiko Prospex Sea highly for its blend of classic design and modern utility at an accessible price point.