Side by side

Christopher Ward C63 Sealander GMTvsSinn U18

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

C63 Sealander GMT
Christopher WardC63 Sealander GMT
MSRP $1,675
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.

Christopher Ward C63 Sealander GMT

The Christopher Ward C63 Sealander GMT is praised for its comfortable wearability, with reviewers noting its slim profile, short lugs, and 39mm case size, while others prefer the proportions of the 36mm version. The watch features a Light-catcher case with alternating brushed and polished surfaces, and the Bader bracelet is highlighted for its build quality and comfort at its price point. Some owners find the gloss white dial's text and indices small, and the orange accents can appear yellow. The Sellita SW330-2 movement provides caller GMT functionality and a 56-hour power reserve. On balance, owners and reviewers appreciate the Christopher Ward C63 Sealander GMT for its comfortable wearability and solid bracelet construction at its price.

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

18 of 29 specs differ
Diameter
C63 Sealander GMT42mm
U1844mm
Power Reserve
C63 Sealander GMT56h
U1842h
Water Resistance
C63 Sealander GMT150m
U182,000m
MSRP
C63 Sealander GMT$1,675
U18$3,488

Full specifications

Case

8 specs
Category
GMT
Diver
Diameter
42mm
44mm
Thickness
11.5mm
15.5mm
Lug-to-Lug
48.5mm
Material
Stainless Steel
high-strength
Finish
Brushed + Polished + Sandblasted
Water Resistance
150m
2000m
Caseback
Display

Crystal & Dial

5 specs
Crystal Shape
Flat
AR Coating
Inner
Dial Color
Blue
Black
Indices
Applied
Lume
SLN X1 BL C1
None

Movement

4 specs
Caliber
SW330
SW300-1
Beat Rate
4 vph
28,800 vph
Power Reserve
56h
42h
Complications
GMT, Moonphase, Day-date
None

Pricing

1 specs
MSRP
$1,675
$3,488
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