Side by side

Bremont Supermarine 300MvsHamilton Jazzmaster Performer Automatic

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

Supermarine 300M
BremontSupermarine 300M
MSRP $3,550
Jazzmaster Performer Automatic
HamiltonJazzmaster Performer Automatic
MSRP $1,245

At a glance

10 of 29 specs differ
Diameter
Supermarine 300M40mm
Jazzmaster Performer Automatic38mm
Power Reserve
Supermarine 300M40h
Jazzmaster Performer Automatic80h
Water Resistance
Supermarine 300M300m
Jazzmaster Performer Automatic100m
MSRP
Supermarine 300M$3,550
Jazzmaster Performer Automatic$1,245

Full specifications

Case

6 specs
Category
Diver
Dress
Diameter
40mm
38mm
Thickness
12mm
11.47mm
Lug-to-Lug
46mm
Material
904L Stainless Steel
Stainless Steel
Water Resistance
300m
100m

Crystal & Dial

1 specs
Dial Color
Green
Blue

Movement

2 specs
Caliber
BE-92AE
H-10
Power Reserve
40h
80h

Pricing

1 specs
MSRP
$3,550
$1,245

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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.

Hamilton Jazzmaster Performer Automatic

Owners widely praise the Hamilton Jazzmaster Performer Automatic for its clean design, comfortable wearability, and impressive 80-hour power reserve, with accuracy averaging just over 2 seconds per day. Some owners note the bezel is non-functional, and one experienced an internal movement failure causing time jumps, though service resolved this. The 34mm variant is considered solid for smaller wrists due to its flatter crystal and reasonable lug-to-lug distance. On balance, owners and reviewers rate the Hamilton Jazzmaster Performer Automatic highly for its blend of style, comfort, and extended power reserve at its price point.

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