Side by side

Sinn U18vsZelos Great White 43

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

U18
SinnU18
MSRP $3,488
Great White 43
ZelosGreat White 43
MSRP $599
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 Great White 43

Owners widely praise the Zelos Great White 43's "unbelievable" and "amazing" lume, particularly on the carbon and Frost variants. The Miyota 9015 movement and 300m water resistance are noted features. Some owners find the 43mm size large, while others report it wears well. Opinions are divided on colorways, with some disappointed by the absence of a "Nebula" option and others finding the "Arctic" version striking. Overall, owners rate the Zelos Great White 43 highly for its exceptional lume and robust specifications at the price point.

At a glance

14 of 29 specs differ
Diameter
U1844mm
Great White 4343mm
Power Reserve
U1842h
Great White 4340h
Water Resistance
U182,000m
Great White 43300m
MSRP
U18$3,488
Great White 43$599

Full specifications

Case

7 specs
Diameter
44mm
43mm
Thickness
15.5mm
12mm
Lug-to-Lug
43mm
Material
high-strength
Titanium (DLC coated)
Finish
Brushed and polished
Water Resistance
2000m
300m
Caseback
Solid

Crystal & Dial

4 specs
Crystal Shape
Flat
AR Coating
Inner
Dial Color
Black
Blue
Indices
Applied

Movement

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

Pricing

1 specs
MSRP
$3,488
$599
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