Side by side

Bremont Supermarine 300MvsChristopher Ward C65 Aquitaine Bronze COSC

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

Supermarine 300M
BremontSupermarine 300M
MSRP $3,550
C65 Aquitaine Bronze COSC
Christopher WardC65 Aquitaine Bronze COSC
MSRP $1,695

At a glance

16 of 29 specs differ
Diameter
Supermarine 300M40mm
C65 Aquitaine Bronze COSC46.68mm
Power Reserve
Supermarine 300M40h
C65 Aquitaine Bronze COSC38h
Water Resistance
Supermarine 300M300m
C65 Aquitaine Bronze COSC200m
MSRP
Supermarine 300M$3,550
C65 Aquitaine Bronze COSC$1,695

Full specifications

Case

8 specs
Diameter
40mm
46.68mm
Thickness
12mm
12.45mm
Lug-to-Lug
46.68mm
Lug Width
20mm
22mm
Material
904L Stainless Steel
Bronze
Finish
Brushed and polished
Brushed + Polished
Water Resistance
300m
200m
Caseback
Solid
Display

Crystal & Dial

2 specs
Dial Color
Green
Blue
Lume
None
SLN X1 BL Old Radium

Movement

5 specs
Caliber
BE-92AE
SW200
Beat Rate
28,800 vph
4 vph
Power Reserve
40h
38h
Jewels
25
26
Complications
None
Moonphase, Day-date, Date

Pricing

1 specs
MSRP
$3,550
$1,695

Follow this matchup

Get a note when Bremont Supermarine 300M vs Christopher Ward C65 Aquitaine Bronze COSC gets more votes, a community discussion, or a price drop. No account needed.

What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Bremont Supermarine 300M

The Bremont Supermarine 300M is praised for its comfortable 40mm and 42mm case sizes, with owners noting the 42mm wears well on smaller wrists due to its lug design. One owner highlights the 13mm thinness of the 40mm case, considered compact for a 300m diver. The watch is priced at $1375. On balance, owners and reviewers appreciate the Bremont Supermarine 300M for its wearability and compact dimensions, especially for a dive watch.

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.

Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.