Side by side

Bremont Supermarine 300MvsChristopher Ward C63 Sealander Rocks

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 Rocks
Christopher WardC63 Sealander Rocks
MSRP $1,350

At a glance

12 of 29 specs differ
Diameter
Supermarine 300M40mm
C63 Sealander Rocks40mm
Power Reserve
Supermarine 300M40h
C63 Sealander Rocks38h
Water Resistance
Supermarine 300M300m
C63 Sealander Rocks150m
MSRP
Supermarine 300M$3,550
C63 Sealander Rocks$1,350

Full specifications

Case

5 specs
Category
Diver
Sport
Thickness
12mm
11.05mm
Lug-to-Lug
42.87mm
Material
904L Stainless Steel
Stainless Steel
Water Resistance
300m
150m

Crystal & Dial

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

Movement

4 specs
Caliber
BE-92AE
SW200-1
Beat Rate
28,800 vph
4 vph
Power Reserve
40h
38h
Jewels
25
26

Pricing

1 specs
MSRP
$3,550
$1,350

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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 Rocks

Owners widely praise the Christopher Ward C63 Sealander Rocks for its excellent wearability, comfort, and build quality for the price, with many highlighting its refined dial and versatile design. The 36mm case is noted as wearing well on smaller wrists, and the robust bracelet offers on-the-fly adjustment. Some owners find the branding prominent or the dial too white, and one owner experienced difficulty adjusting the time on their 36mm model. The Sellita SW200-1 movement provides a 38-hour power reserve. On balance, owners and reviewers rate the Christopher Ward C63 Sealander Rocks highly for its exceptional wearability and refined dial at its price point.

From video reviewers

The dial finishing and unique stone dial options are strong points. The 36mm case size is a shared feature. Reviewers questioned its value proposition against other watches under $1,000.

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