Sinn EZM 3 SvsTuseno Blackwater
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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.

EZM 3 S

Blackwater
Diameter
41mm
40.5mm
Lug-to-Lug
n/a
50mm
Thickness
12.3mm
n/a
Water Resistance
500m
highest
200m
Power Reserve
38h
n/a
MSRP
$3,046
$999
lowest
Movement
Sellita SW200-1
Sellita SW200-1
Case
7 specsCrystal & Dial
4 specsMovement
4 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
The Sinn EZM 3 S is praised for its robust build, Tegiment technology, and scratch resistance, making it a purpose-built tactical dive watch. Reviewers note its reliable Sellita SW200-1 movement, though its 38-hour power reserve is considered somewhat outdated. Overall, reviewers find the Sinn EZM 3 S to be a highly capable and durable tool watch.
The Tuseno Blackwater is praised by owners and reviewers for its attractive, non-ordinary diver styling and versatile design. Enthusiastic owners state it "slaps hard," and reviewers highlight its value proposition at its price point, durability, and compelling wrist presence. The integrated bracelet is a standout feature, offering fluidity. The Tuseno Blackwater features a Sellita SW200-1 automatic movement, 200m water resistance, and a 40.5mm case. Some reviewers note a 38-hour power reserve as a bit lacking, while others find the bezel action solid but potentially stiff. On balance, owners and reviewers rate the Tuseno Blackwater highly for its unique styling and value at the price.
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