Side by side

Christopher Ward C65 Aquitaine Bronze COSCvsLongines ULTRA‑CHRON CARBON

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
ULTRA‑CHRON CARBON
LonginesULTRA‑CHRON CARBON
MSRP $5,550

At a glance

20 of 29 specs differ
Diameter
C65 Aquitaine Bronze COSC46.68mm
ULTRA‑CHRON CARBON43mm
Power Reserve
C65 Aquitaine Bronze COSC38h
ULTRA‑CHRON CARBON52h
Water Resistance
C65 Aquitaine Bronze COSC200m
ULTRA‑CHRON CARBON300m
MSRP
C65 Aquitaine Bronze COSC$1,695
ULTRA‑CHRON CARBON$5,550

Full specifications

Case

7 specs
Diameter
46.68mm
43mm
Thickness
12.45mm
14mm
Lug-to-Lug
46.68mm
48.9mm
Material
Bronze
Titanium
Finish
Brushed + Polished
Water Resistance
200m
300m
Caseback
Display
Screw-down case back

Crystal & Dial

5 specs
Crystal Shape
Flat
AR Coating
Inner
Both sides
Dial Color
Blue
Silver
Indices
Applied
Applied indexes
Lume
SLN X1 BL Old Radium
Super-LumiNova

Movement

7 specs
Caliber
SW200
L836.6
Beat Rate
4 vph
36,000 vph
Power Reserve
38h
52h
Jewels
26
0
Hacking
Yes
No
Hand-winding
Yes
No
Complications
Moonphase, Day-date, Date
Hours, minutes, seconds

Pricing

1 specs
MSRP
$1,695
$5,550

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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.

Longines ULTRA‑CHRON CARBON

The Longines ULTRA‑CHRON CARBON is praised for its lightweight composite case and unique "Batman" aesthetic, with its 5Hz movement widely noted for exceptional accuracy. Owners widely report the high-beat movement is the cheapest 5Hz option available. Some owners find the non-rotating bezel a relief, while others consider it a deal-breaker, noting the watch is no longer a dive watch. On balance, owners and reviewers highly rate the Longines ULTRA‑CHRON CARBON for its cool, lightweight design and the exceptional accuracy of its 5Hz movement.

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