Side by side

Christopher Ward C65 Aquitaine Bronze COSCvsSeestern S450 Ocean Star

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
S450 Ocean Star
SeesternS450 Ocean Star
MSRP $299

At a glance

16 of 29 specs differ
Diameter
C65 Aquitaine Bronze COSC46.68mm
S450 Ocean Star40mm
Power Reserve
C65 Aquitaine Bronze COSC38h
S450 Ocean Star41h
Water Resistance
C65 Aquitaine Bronze COSC200m
S450 Ocean Star100m
MSRP
C65 Aquitaine Bronze COSC$1,695
S450 Ocean Star$299

Full specifications

Case

8 specs
Diameter
46.68mm
40mm
Thickness
12.45mm
12mm
Lug-to-Lug
46.68mm
48mm
Lug Width
22mm
20mm
Material
Bronze
316L Stainless Steel
Finish
Brushed + Polished
Brushed and polished
Water Resistance
200m
100m
Caseback
Display
Solid

Crystal & Dial

2 specs
Dial Color
Blue
White
Lume
SLN X1 BL Old Radium
Tritium

Movement

5 specs
Caliber
SW200
TMI NH35A
Beat Rate
4 vph
21,600 vph
Power Reserve
38h
41h
Jewels
26
24
Complications
Moonphase, Day-date, Date
GMT, Date

Pricing

1 specs
MSRP
$1,695
$299

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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.

Seestern S450 Ocean Star

Owners widely praise the Seestern S450 Ocean Star's Yachtmaster-style case and flawless bracelet finishing, with one owner noting the ST2130 movement keeps good time. The bezel action is described as having individual notches but feeling like a friction bezel, while another owner flags the bezel and crown action as smooth with perfect alignment. Lume is a point of contention, with one source describing it as a nice cool blue with ice-white application, while others note it as weak or not matching Prospex standards, despite using BGW-9. The watch is considered a "big boy" ideal for larger wrists (19cm+), potentially too large for 17cm wrists due to its size and non-tapering bracelet. Overall, owners rate the Seestern S450 Ocean Star highly for its build quality and finishing at the price point, despite some reservations about its size and lume intensity.

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