Side by side

Sinn U18vsZelos Thresher 44

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

U18
SinnU18
MSRP $3,488
Thresher 44
ZelosThresher 44
MSRP $549
What people say

Owners + reviewers, side by side

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

Sinn U18

The Sinn U18 is praised for its unique deep blue/green dial with three-dimensional oxygen bubbles that change with light, and its comfortable, easily adjustable bracelet. Owners find the watch stunning and a piece of history, appreciating the refined hands. The Sinn U18 features a 44mm, 15.5mm thick case made from German submarine steel, offering a 2000-meter dive specification and Sinn's Ar-Dehumidifying technology, powered by a Sellita SW300-1 movement. The case thickness is apparent, and the watch comes as a complete set with box and papers for $3,000-$3,680. On balance, owners and reviewers rate the Sinn U18 highly for its striking dial and robust build.

Zelos Thresher 44

Owners widely praise the Zelos Thresher 44, with one owner noting its finish has proven remarkably scratch-resistant. However, one owner found the finishing on their hammered grey variant not as well done as expected. The Zelos Thresher 44 with an agate dial sold out in 90 seconds, with one owner receiving theirs and noting the bracelet was fully wrapped. Overall, owners rate the Zelos Thresher 44 highly for its desirability and scratch-resistant finish.

At a glance

14 of 29 specs differ
Diameter
U1844mm
Thresher 4444mm
Power Reserve
U1842h
Thresher 4440h
Water Resistance
U182,000m
Thresher 44500m
MSRP
U18$3,488
Thresher 44$549

Full specifications

Case

6 specs
Thickness
15.5mm
12.8mm
Lug-to-Lug
44mm
Material
high-strength
316L Stainless Steel
Finish
Brushed and polished
Water Resistance
2000m
500m
Caseback
Solid

Crystal & Dial

5 specs
Crystal
Sapphire
Domed Sapphire
Crystal Shape
Flat
AR Coating
Inner
Dial Color
Black
Grey
Indices
Applied

Movement

2 specs
Caliber
SW300-1
Miyota 9015
Power Reserve
42h
40h

Pricing

1 specs
MSRP
$3,488
$549
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