Side by side

Bremont Supermarine 300MvsSeiko 5 Sports SKX series Heritage Design Re-creation Limited Edition

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

Supermarine 300M
BremontSupermarine 300M
MSRP $3,550

At a glance

14 of 29 specs differ
Diameter
Supermarine 300M40mm
5 Sports SKX series Heritage Design Re-creation Limited Edition38.2mm
Power Reserve
Supermarine 300M40h
5 Sports SKX series Heritage Design Re-creation Limited Edition41h
Water Resistance
Supermarine 300M300m
5 Sports SKX series Heritage Design Re-creation Limited Edition100m
MSRP
Supermarine 300M$3,550
5 Sports SKX series Heritage Design Re-creation Limited Edition$440

Full specifications

Case

6 specs
Category
Diver
Sport
Diameter
40mm
38.2mm
Thickness
12mm
12.3mm
Lug-to-Lug
44.7mm
Material
904L Stainless Steel
Stainless Steel
Water Resistance
300m
100m

Crystal & Dial

4 specs
Crystal
Sapphire
Hardlex
Crystal Shape
Flat
Curved
Dial Color
Green
Black
Lume
None
LumiBrite on hands, index(es) and bezel

Movement

3 specs
Caliber
BE-92AE
4R36
Power Reserve
40h
41h
Jewels
25
24

Pricing

1 specs
MSRP
$3,550
$440

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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.

Seiko 5 Sports SKX series Heritage Design Re-creation Limited Edition

The Seiko 5 Sports SKX series Heritage Design Re-creation Limited Edition is praised for its faithful recreation of the 1968 original, featuring a 39mm case and vintage dial details. Reviewers note its comfortable bracelet and heritage-inspired design, with one calling it heritage-inspired Seiko at its best. The $450 MSRP is considered reasonable. However, the 4 o'clock crown placement can be challenging for setting the time, and some enthusiasts may find the case finishing does not meet their expectations. On balance, reviewers rate the Seiko 5 Sports SKX series Heritage Design Re-creation Limited Edition highly for its authentic vintage design and comfortable wearability at its price point.

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