Side by side

Bremont Supermarine ChronovsGrand Seiko SBGE307

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

Supermarine Chrono
BremontSupermarine Chrono
MSRP $6,850
SBGE307
Grand SeikoSBGE307
MSRP $11,500

At a glance

12 of 29 specs differ
Diameter
Supermarine Chrono43mm
SBGE30744.5mm
Power Reserve
Supermarine Chrono40h
SBGE30772h
Water Resistance
Supermarine Chrono300m
SBGE307200m
MSRP
Supermarine Chrono$6,850
SBGE307$11,500

Full specifications

Case

7 specs
Category
Chronograph
GMT
Diameter
43mm
44.5mm
Thickness
15.87mm
14.9mm
Lug-to-Lug
50mm
Lug Width
22mm
23mm
Material
Stainless Steel (DLC coated)
Titanium
Water Resistance
300m
200m

Crystal & Dial

1 specs
AR Coating
Inner
Yes

Movement

3 specs
Caliber
BE-50AE
9R66
Type
Automatic
Spring Drive
Power Reserve
40h
72h

Pricing

1 specs
MSRP
$6,850
$11,500

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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 SBGE307

The Grand Seiko SBGE307 is praised for its unique "lion's mane" textured ivory dial and angular, modern titanium case featuring Zaratsu polishing. Reviewers highlight the aggressive, claw-shaped lugs and the contrasting hairline finishing, as well as the brownish-red GMT hand as a notable accent. The watch is powered by the 9R66 Spring Drive movement, offering a 72-hour power reserve and accuracy rated at +/- 15 seconds per month by one source, and +/- 1 second per day by another. It is priced at $10,700 USD and offers 200m water resistance. On balance, reviewers find the Grand Seiko SBGE307 to be a striking timepiece distinguished by its textured dial and sharp case finishing.

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