Side by side

Christopher Ward C65 Aquitaine Bronze COSCvsSeiko Prospex LX line

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
Prospex LX line
SeikoProspex LX line
MSRP $5,500

At a glance

17 of 29 specs differ
Diameter
C65 Aquitaine Bronze COSC46.68mm
Prospex LX line44.8mm
Power Reserve
C65 Aquitaine Bronze COSC38h
Prospex LX line72h
Water Resistance
C65 Aquitaine Bronze COSC200m
Prospex LX line200m
MSRP
C65 Aquitaine Bronze COSC$1,695
Prospex LX line$5,500

Full specifications

Case

7 specs
Category
Diver
GMT
Diameter
46.68mm
44.8mm
Thickness
12.45mm
14.7mm
Lug-to-Lug
46.68mm
50.9mm
Material
Bronze
Titanium
Finish
Brushed + Polished
Brushed and polished
Caseback
Display
Solid

Crystal & Dial

3 specs
AR Coating
Inner
Super-clear coating
Dial Color
Blue
Black
Lume
SLN X1 BL Old Radium
LumiBrite on hands and index(es)

Movement

6 specs
Caliber
SW200
5R66
Type
Automatic
Spring Drive
Beat Rate
4 vph
28,800 vph
Power Reserve
38h
72h
Jewels
26
30
Complications
Moonphase, Day-date, Date
None

Pricing

1 specs
MSRP
$1,695
$5,500

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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.

Seiko Prospex LX line

Owners widely report the dial's blue-green sunburst is phenomenal, and the sapphire glass features blue AR coating. Some owners feel the high price limits discounts and sales, with one AD noting extremely low sales due to the cost. One owner reported DLC peeling off a two-week-old watch, and another noted quality control issues like bezel inserts and fallen second hands. On balance, owners consider the Seiko Prospex LX line a nicely built watch, though pricing led to poor sales and its discontinuation.

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