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 $6,350

At a glance

21 of 29 specs differ
Diameter
Supermarine 300M40mm
MASTER COLLECTION25.5mm
Power Reserve
Supermarine 300M40h
MASTER COLLECTION45h
Water Resistance
Supermarine 300M300m
MASTER COLLECTION30m
MSRP
Supermarine 300M$3,550
MASTER COLLECTION$6,350

Full specifications

Case

9 specs
Category
Diver
Diameter
40mm
25.5mm
Thickness
12mm
9mm
Lug-to-Lug
30.6mm
Lug Width
20mm
13mm
Material
904L Stainless Steel
Gold
Finish
Brushed and polished
Water Resistance
300m
30m
Caseback
Solid
Transparent case back with sapphire crystal

Crystal & Dial

5 specs
Crystal Shape
Flat
AR Coating
Inner
Dial Color
Green
Silver
Indices
Applied
Painted Arabic numerals
Lume
None
Super-LumiNova

Movement

6 specs
Caliber
BE-92AE
L592.5
Power Reserve
40h
45h
Jewels
25
0
Hacking
Yes
No
Hand-winding
Yes
No
Complications
None
Hours, minutes, seconds and date

Pricing

1 specs
MSRP
$3,550
$6,350

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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

The Longines Master Collection is widely praised for its excellent value, with reviewers and owners citing its dressy aesthetic, good fit and finish, and attractive complications like annual calendars and chronographs for under $3,000. Owners highlight the beautiful dials, engraved numerals, and the L893 caliber's 72-hour power reserve. Some find the standard Master Collection thin and well-finished, while others note a slightly thicker case on certain models. A few owners express reservations about the bracelet's adjustment options and the homogeneity of the case finishing. One reviewer points out that the subdial can obscure the '7' numeral on the Small Seconds model, and another notes that pushers can feel cheap and the chrono hour counter may not reset perfectly. Water resistance is noted as 30m on some models.

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