Side by side

Bremont Supermarine 300MvsGrand Seiko SLGA019

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

Supermarine 300M
BremontSupermarine 300M
MSRP $3,550
SLGA019
Grand SeikoSLGA019
MSRP $11,000

At a glance

12 of 29 specs differ
Diameter
Supermarine 300M40mm
SLGA01940mm
Power Reserve
Supermarine 300M40h
SLGA019120h
Water Resistance
Supermarine 300M300m
SLGA019100m
MSRP
Supermarine 300M$3,550
SLGA019$11,000

Full specifications

Case

6 specs
Category
Diver
Dress
Thickness
12mm
11.8mm
Lug-to-Lug
47.9mm
Lug Width
20mm
22mm
Material
904L Stainless Steel
Titanium
Water Resistance
300m
100m

Crystal & Dial

2 specs
AR Coating
Inner
Yes
Dial Color
Green
Black

Movement

3 specs
Caliber
BE-92AE
9RA2
Type
Automatic
Spring Drive
Power Reserve
40h
120h

Pricing

1 specs
MSRP
$3,550
$11,000

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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.

Grand Seiko SLGA019

Owners and reviewers widely praise the Grand Seiko SLGA019 for its stunning "Minamo" dial, inspired by Lake Suwa, with its intricate texture and finishing. The Evolution 9 case, constructed from lightweight Grade 5 titanium, is lauded for its refinement and comfortable wearability. The 9RA2 Spring Drive movement is noted for exceptional accuracy, with one owner documenting a loss of only 0.5 seconds in a week. However, some criticism is directed at the bracelet's lack of micro-adjustment and its pin-and-collar system, and the movement's finishing is described as somewhat plain. The retail price is also flagged as high. Overall, the consensus is that the Grand Seiko SLGA019 is a highly refined and accurate watch, with its dial and comfortable titanium case being the primary reasons for its strong reception.

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