Side by side

Bremont Supermarine 300MvsSeestern S443 Column Wheel Chronograph

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

15 of 29 specs differ
Diameter
Supermarine 300M40mm
S443 Column Wheel Chronograph40mm
Power Reserve
Supermarine 300M40h
S443 Column Wheel Chronograph45hh
Water Resistance
Supermarine 300M300m
S443 Column Wheel Chronograph50m
MSRP
Supermarine 300M$3,550
S443 Column Wheel Chronograph$10

Full specifications

Case

5 specs
Category
Diver
Chronograph
Thickness
12mm
13mm
Lug-to-Lug
48.6mm
Material
904L Stainless Steel
316L Stainless Steel
Water Resistance
300m
50m

Crystal & Dial

3 specs
Dial Color
Green
Pink
Indices
Applied
3D
Lume
None
Super BGW9

Movement

6 specs
Caliber
BE-92AE
Seagull ST1901
Type
Automatic
Manual
Beat Rate
28,800 vph
3 vph
Power Reserve
40h
45hh
Jewels
25
21
Complications
None
Chronograph, Column Wheel

Pricing

1 specs
MSRP
$3,550
$10

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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.

Seestern S443 Column Wheel Chronograph

Owners widely praise the Seestern S443 Column Wheel Chronograph for its affordable mechanical chronograph movement with a column wheel, derived from the Venus 175. Some owners appreciate the watch's overall aesthetic, with one noting a preference for the black-yellow variant. The ST19 movement's execution is generally well-regarded, though one owner found the chronograph minute counter could stick, a common issue that may require a watchmaker, while another noted sticky chrono pushers after patina development on the bronze case. The ST19 movement lacks an hours totalizer, and its assembly is not as refined as luxury timepieces, though comparable to entry-level automatics. One owner finds the "hand winding" script font on the dial to be a design flaw. Overall, owners rate the Seestern S443 Column Wheel Chronograph highly for its value as a column wheel chronograph, despite minor assembly and functional quirks.

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