Side by side

Bremont Supermarine 500MvsGrand Seiko SBGH281

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

Supermarine 500M
BremontSupermarine 500M
MSRP $4,700
SBGH281
Grand SeikoSBGH281
MSRP $6,300

At a glance

12 of 29 specs differ
Diameter
Supermarine 500M43mm
SBGH28140mm
Power Reserve
Supermarine 500M40h
SBGH28155h
Water Resistance
Supermarine 500M500m
SBGH281100m
MSRP
Supermarine 500M$4,700
SBGH281$6,300

Full specifications

Case

7 specs
Category
Diver
Dress
Diameter
43mm
40mm
Thickness
13mm
13.3mm
Lug-to-Lug
46.2mm
Lug Width
22mm
19mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
500m
100m

Crystal & Dial

2 specs
Crystal
Domed Sapphire
Sapphire
AR Coating
Inner
Yes

Movement

2 specs
Caliber
BE-92AE
9S85
Power Reserve
40h
55h

Pricing

1 specs
MSRP
$4,700
$6,300

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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 500M

Owners widely praise the Bremont Supermarine 500M's luxurious appearance and sapphire bezel, with some preferring its design over other luxury dive watches. Reviewers note its updated, legible dial with excellent, long-lasting Super-LumiNova lume. The hardened steel case with anti-reflective coating offers scratch resistance, and the crown placement is a favored feature. Some owners find the 43mm thickness substantial, and one reviewer questions the long-term water resistance of its three-piece case construction compared to traditional designs. Criticisms include the lack of a dive suit extension on the bracelet and a second hand that can be difficult to see in low light, with some finding the bezel markings could be more prominent. Overall, owners and reviewers consider the Bremont Supermarine 500M a handsome, rugged dive watch with a refined look that competes well with more expensive brands.

Grand Seiko SBGH281

The Grand Seiko SBGH281 is lauded for its 44GS-style case, which exemplifies the brand's "Grammar of Design" with its sharp facets and broad case band, and its Hi-Beat 36000vph Caliber 9S85 movement, noted for an ultra-smooth second hand. Reviewers highlight the exceptional finishing, including Zaratsu polishing and hand-polished markers, as offering significant value at its €6,200 price point. The watch features an accuracy rating of +5/–3 seconds per day, a 55-hour power reserve, and 100-meter water resistance, all executed to Grand Seiko's high standards, and is limited to 1,500 pieces. Overall, reviewers rate the Grand Seiko SBGH281 highly for its iconic case design and superb finishing at its price.

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