Side by side

Bremont Supermarine 300MvsSternglas Hamburg Pro Automatik

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

Supermarine 300M
BremontSupermarine 300M
MSRP $3,550
Hamburg Pro Automatik
SternglasHamburg Pro Automatik
MSRP $755

At a glance

11 of 29 specs differ
Diameter
Supermarine 300M40mm
Hamburg Pro Automatik42mm
Power Reserve
Supermarine 300M40h
Hamburg Pro Automatik42h
Water Resistance
Supermarine 300M300m
Hamburg Pro Automatik50m
MSRP
Supermarine 300M$3,550
Hamburg Pro Automatik$755

Full specifications

Case

5 specs
Category
Diver
Sport
Diameter
40mm
42mm
Lug-to-Lug
45mm
Material
904L Stainless Steel
Stainless Steel
Water Resistance
300m
50m

Crystal & Dial

2 specs
Dial Color
Green
Lume
None
Luminova Indizes

Movement

3 specs
Caliber
BE-92AE
Miyota 8215
Power Reserve
40h
42h
Jewels
25

Pricing

1 specs
MSRP
$3,550
$755

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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.

Sternglas Hamburg Pro Automatik

Owners widely praise the Sternglas Hamburg Pro Automatik for its Bauhaus-inspired design, German assembly, and excellent value, with many appreciating its comfortable wearability and uncluttered dial. Specific positive notes include a substantial weight that feels good on the wrist and a pleasing matte dial texture. The Miyota 8215 movement is generally considered reliable and surprisingly accurate, though some owners find it louder than expected and note the lack of hacking seconds. Caveats include a minimal instruction manual, an initially stiff strap, and a date window recess that can make the date difficult to see. Owners are split on the case finishing, with some finding it not too bad and nicely polished, while others criticize it. The case is also described by some as thick, making it potentially awkward for long-sleeved shirts. On balance, owners and reviewers rate the Sternglas Hamburg Pro Automatik highly for its attractive Bauhaus design and strong value proposition.

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