Side by side

Bremont Supermarine 300MvsChristopher Ward C63 Sealander Automatic

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

Supermarine 300M
BremontSupermarine 300M
MSRP $3,550
C63 Sealander Automatic
Christopher WardC63 Sealander Automatic
MSRP $1,430

At a glance

14 of 29 specs differ
Diameter
Supermarine 300M40mm
C63 Sealander Automatic36mm
Power Reserve
Supermarine 300M40h
C63 Sealander Automatic65h
Water Resistance
Supermarine 300M300m
C63 Sealander Automatic150m
MSRP
Supermarine 300M$3,550
C63 Sealander Automatic$1,430

Full specifications

Case

6 specs
Category
Diver
Sport
Diameter
40mm
36mm
Thickness
12mm
10.6mm
Lug-to-Lug
42mm
Material
904L Stainless Steel
Stainless Steel
Water Resistance
300m
150m

Crystal & Dial

2 specs
Dial Color
Green
Blue
Lume
None
SLN X1 BL C1

Movement

5 specs
Caliber
BE-92AE
SW 200-2
Beat Rate
28,800 vph
4 vph
Power Reserve
40h
65h
Jewels
25
26
Complications
None
Day-date, Date

Pricing

1 specs
MSRP
$3,550
$1,430

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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.

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 C63 Sealander Automatic

Owners widely praise the Christopher Ward C63 Sealander Automatic for its excellent finishing, on-the-fly micro-adjust bracelet, and GADA versatility, with some calling it their best offering and a bargain. However, the lume is consistently criticized as weak, particularly for its price point. Some owners find the dial's multiple color pops distracting, and one notes the brand's poor aftermarket value retention. On balance, owners rate the Christopher Ward C63 Sealander Automatic highly for its build quality and versatility at the price.

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