Side by side

Bremont Supermarine ChronovsGrand Seiko SLGW004

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

Supermarine Chrono
BremontSupermarine Chrono
MSRP $6,850
SLGW004
Grand SeikoSLGW004
MSRP $30,000

At a glance

12 of 29 specs differ
Diameter
Supermarine Chrono43mm
SLGW00438.8mm
Power Reserve
Supermarine Chrono40h
SLGW00480h
Water Resistance
Supermarine Chrono300m
SLGW00430m
MSRP
Supermarine Chrono$6,850
SLGW004$30,000

Full specifications

Case

7 specs
Category
Chronograph
Dress
Diameter
43mm
38.8mm
Thickness
15.87mm
10.4mm
Lug-to-Lug
43.7mm
Lug Width
22mm
19mm
Material
Stainless Steel (DLC coated)
Gold
Water Resistance
300m
30m

Crystal & Dial

1 specs
AR Coating
Inner
Yes

Movement

3 specs
Caliber
BE-50AE
9SA4
Type
Automatic
Manual
Power Reserve
40h
80h

Pricing

1 specs
MSRP
$6,850
$30,000

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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 Chrono

The Bremont Supermarine Chrono's black dial and understated bezel markings allow it to transition effectively from rugged use to evening events. On balance, owners and reviewers find the Bremont Supermarine Chrono to be a handsome and functional watch, with its versatile dial design being a key strength.

Grand Seiko SLGW004

The Grand Seiko SLGW004 is praised for its elegant, faithful reissue design and impressive technical execution, featuring a new 9SA4 hi-beat manual-winding movement with an 80-hour power reserve and accuracy of -3/+5 seconds per day. Reviewers highlight the sharp case facets, double-signed dial, and beautifully decorated movement visible through the display caseback, along with an enjoyable winding experience. One reviewer noted a desire for better water resistance and expressed a dislike for the etched sapphire case back. Overall, reviewers rate the Grand Seiko SLGW004 highly for its elegant design and technically impressive movement.

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