Side by side

Bremont Supermarine 300MvsCincinnati Watch Company Guild Mechanical Steel

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

Supermarine 300M
BremontSupermarine 300M
MSRP $3,550
Guild Mechanical Steel
Cincinnati Watch CompanyGuild Mechanical Steel
MSRP $650

At a glance

19 of 29 specs differ
Diameter
Supermarine 300M40mm
Guild Mechanical Steel36mm
Power Reserve
Supermarine 300M40h
Guild Mechanical Steel45h
Water Resistance
Supermarine 300M300m
Guild Mechanical Steel30m
MSRP
Supermarine 300M$3,550
Guild Mechanical Steel$650

Full specifications

Case

9 specs
Category
Diver
Dress
Diameter
40mm
36mm
Thickness
12mm
0mm
Lug-to-Lug
0mm
Lug Width
20mm
0mm
Material
904L Stainless Steel
316L Stainless Steel
Finish
Brushed and polished
Water Resistance
300m
30m
Caseback
Solid

Crystal & Dial

4 specs
Crystal Shape
Flat
Domed
AR Coating
Inner
Dial Color
Green
Multiple
Indices
Applied

Movement

5 specs
Caliber
BE-92AE
Sellita SW210
Type
Automatic
Manual
Beat Rate
28,800 vph
0 vph
Power Reserve
40h
45h
Jewels
25
18

Pricing

1 specs
MSRP
$3,550
$650

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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.

Cincinnati Watch Company Guild Mechanical Steel

The Cincinnati Watch Company Guild Mechanical Steel is praised for its sharp, vintage-inspired dial with ornate Breguet numerals and textured center, and its comfortable, solid-link bracelet. Owners widely report good legibility and a classy design. Some find its 10mm thickness too much for a dressy manual wind watch, and the acrylic crystal and quartz movement are noted as compromises for the price, with one owner stating they would not pay more than $150 for a watch with these features. On balance, owners rate the Cincinnati Watch Company Guild Mechanical Steel highly for its beautiful dial and vintage design at a budget price point.

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