Side by side

Bremont Supermarine 300MvsLongines MASTER COLLECTION

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

Supermarine 300M
BremontSupermarine 300M
MSRP $3,550
MASTER COLLECTION
LonginesMASTER COLLECTION
MSRP $2,650

At a glance

20 of 29 specs differ
Diameter
Supermarine 300M40mm
MASTER COLLECTION29mm
Power Reserve
Supermarine 300M40h
MASTER COLLECTION72h
Water Resistance
Supermarine 300M300m
MASTER COLLECTION30m
MSRP
Supermarine 300M$3,550
MASTER COLLECTION$2,650

Full specifications

Case

9 specs
Category
Diver
Diameter
40mm
29mm
Thickness
12mm
9.64mm
Lug-to-Lug
49.6mm
Lug Width
20mm
21mm
Material
904L Stainless Steel
Stainless Steel
Finish
Brushed and polished
Water Resistance
300m
30m
Caseback
Solid

Crystal & Dial

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

Movement

6 specs
Caliber
BE-92AE
L888.5
Beat Rate
28,800 vph
0 vph
Power Reserve
40h
72h
Jewels
25
0
Hacking
Yes
No
Hand-winding
Yes
No

Pricing

1 specs
MSRP
$3,550
$2,650

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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.

Longines MASTER COLLECTION

Owners widely praise the Longines Master Collection for its excellent finishing, classic styling, and value proposition, with specific call-outs for beautiful dials, Breguet numerals, and complications like moon phases and annual calendars. Reviewers and owners alike highlight the attractive price point for a Swiss-made timepiece featuring these elements. Some owners note the bracelet lacks sufficient micro-adjustment for a perfect fit, and one reviewer found the case finishing somewhat homogenous. A specific chronograph variant's pushers were described as having a cheap feel, and its hour counter did not always reset to zero, while another variant's subdial obscured a numeral. Water resistance is noted as 30m for one model, considered light by a reviewer. Overall, owners rate the Longines Master Collection highly for its dial aesthetics and the value it offers in complications and finishing.

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