Side by side

Formex Reef GMTvsGrand Seiko SBGA211

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

Reef GMT
FormexReef GMT
MSRP $2,235
SBGA211
Grand SeikoSBGA211
MSRP $6,900

At a glance

13 of 29 specs differ
Diameter
Reef GMT42mm
SBGA21141mm
Power Reserve
Reef GMT56h
SBGA21172h
Water Resistance
Reef GMT300m
SBGA211100m
MSRP
Reef GMT$2,235
SBGA211$6,900

Full specifications

Case

7 specs
Category
GMT
Dress
Diameter
42mm
41mm
Thickness
11.4mm
12.5mm
Lug-to-Lug
47mm
49mm
Lug Width
22mm
20mm
Material
Stainless Steel
Titanium
Water Resistance
300m
100m

Crystal & Dial

2 specs
AR Coating
Inner
Yes
Lume
Super-LumiNova
None

Movement

3 specs
Caliber
Sellita SW330-2
9R65
Type
Automatic
Spring Drive
Power Reserve
56h
72h

Pricing

1 specs
MSRP
$2,235
$6,900

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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.

Formex Reef GMT

The Formex Reef GMT is widely praised for its unique porthole case shape, COSC-certified Sellita SW330-2 movement with good finishing, and comfortable quick-release bracelet with on-the-fly micro-adjustment. Reviewers note its robust construction, impressive specifications, and strong value proposition, with a slim 11.4mm profile accommodating 300m water resistance and an exhibition caseback. However, owners widely report the 53mm lug-to-lug span with male endlinks makes it too large for smaller wrists. Some find the bezel action stiff and potentially slippery, and a reviewer desired sharper finishing and edges, deeming the aesthetic too modernist. The GMT variant sacrifices a timing bezel unless swapped, and one owner notes sharp edges on the crown and crown guard. Overall, owners and reviewers highly rate the Formex Reef GMT for its exceptional value and well-executed features, particularly its bracelet system and COSC-certified movement.

From video reviewers

The watch features a COSC-certified SW330-2 GMT movement, which is visible through a sapphire crystal display case back and beautifully decorated. The watch's water-resistance of up to 300m/1000ft is a notable feature. The 42mm diameter may be too large for smaller wrists.

Grand Seiko SBGA211

Grand Seiko SBGA211 owners and reviewers widely praise its exceptional finishing, particularly the Zaratsu polishing, and its mesmerizing, textured dial. The Spring Drive movement is consistently highlighted as a technical masterpiece, offering quartz-like accuracy of +/- 1 second per day and a smooth seconds sweep. Its lightweight titanium construction and 41mm case size contribute to a comfortable and wearable design. However, some owners find the dial texture less captivating in person than in photos, and there are mixed opinions on the bracelet's adjustment system and perceived quality relative to the price. Some also note its thickness and lack of lume. Overall, owners and reviewers rate the Grand Seiko SBGA211 highly for its unique dial and superb finishing, making it a highly regarded icon.

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