Side by side

Horage Supersede GMTvsSinn U18

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

Supersede GMT
HorageSupersede GMT
MSRP $7,270
U18
SinnU18
MSRP $3,488
What people say

Owners + reviewers, side by side

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

Horage Supersede GMT

The Horage Supersede GMT is widely praised for its innovative micro-rotor movement and impressive finishing. Owners and reviewers highlight its value as a true GMT sports watch, noting the compact 39.5mm case and 200m water resistance. The K2 movement offers a 72-hour power reserve, and updates include an optional platinum rotor, a luminous seconds hand tip, and a new micro-adjustable clasp. One potential hesitation for buyers is the inability to see the watch in person. Overall, owners and reviewers rate the Horage Supersede GMT highly for its innovative micro-rotor movement and excellent value.

From video reviewers

The Horage Supersede GMT features a unique case design that blends different styles. A notable strength is its in-house K2 micro-rotor movement. One weakness is the relatively average lume brightness.

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.

At a glance

16 of 29 specs differ
Diameter
Supersede GMT39.5mm
U1844mm
Power Reserve
Supersede GMT72h
U1842h
Water Resistance
Supersede GMT200m
U182,000m
MSRP
Supersede GMT$7,270
U18$3,488

Full specifications

Case

8 specs
Category
GMT
Diver
Diameter
39.5mm
44mm
Thickness
9.85mm
15.5mm
Lug-to-Lug
46.29mm
Material
Stainless Steel
high-strength
Finish
Brushed and polished
Water Resistance
200m
2000m
Caseback
Solid

Crystal & Dial

4 specs
Crystal Shape
Flat
AR Coating
No
Indices
Applied
Lume
Super-LumiNova
None

Movement

3 specs
Caliber
Horage K2
SW300-1
Power Reserve
72h
42h
Complications
GMT
None

Pricing

1 specs
MSRP
$7,270
$3,488
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