Side by side

Christopher Ward C65 Aquitaine Bronze COSCvsSinn U18

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

C65 Aquitaine Bronze COSC
Christopher WardC65 Aquitaine Bronze COSC
MSRP $1,695
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 C65 Aquitaine Bronze COSC

Owners widely praise the Christopher Ward C65 Aquitaine Bronze COSC for its comfortable wearability, durable case and bezel, and smooth winding action, with one owner finding its case superior to a Tudor's. However, accuracy is a significant concern, with one owner reporting +17 seconds per day. The rubber strap is also noted as lacking refinement, and some suggest design tweaks for greater brand uniqueness. Overall, owners rate the Christopher Ward C65 Aquitaine Bronze COSC highly for its wearability and case finishing, despite accuracy concerns with the Sellita SW330-2 movement.

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
C65 Aquitaine Bronze COSC46.68mm
U1844mm
Power Reserve
C65 Aquitaine Bronze COSC38h
U1842h
Water Resistance
C65 Aquitaine Bronze COSC200m
U182,000m
MSRP
C65 Aquitaine Bronze COSC$1,695
U18$3,488

Full specifications

Case

7 specs
Diameter
46.68mm
44mm
Thickness
12.45mm
15.5mm
Lug-to-Lug
46.68mm
Material
Bronze
high-strength
Finish
Brushed + Polished
Water Resistance
200m
2000m
Caseback
Display

Crystal & Dial

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

Movement

5 specs
Caliber
SW200
SW300-1
Beat Rate
4 vph
28,800 vph
Power Reserve
38h
42h
Jewels
26
25
Complications
Moonphase, Day-date, Date
None

Pricing

1 specs
MSRP
$1,695
$3,488
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