Side by side

Formex Reef 39.5 mmvsGrand Seiko SBGZ011

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

Reef 39.5 mm
FormexReef 39.5 mm
MSRP $2,230
SBGZ011
Grand SeikoSBGZ011
MSRP $84,000

At a glance

14 of 29 specs differ
Diameter
Reef 39.5 mm39.5mm
SBGZ01140mm
Power Reserve
Reef 39.5 mm56h
SBGZ01184h
Water Resistance
Reef 39.5 mm300m
SBGZ01130m
MSRP
Reef 39.5 mm$2,230
SBGZ011$84,000

Full specifications

Case

7 specs
Category
Diver
Dress
Diameter
39.5mm
40mm
Thickness
11mm
9.6mm
Lug-to-Lug
45.5mm
45.2mm
Lug Width
22mm
19mm
Material
Stainless Steel
Platinum
Water Resistance
300m
30m

Crystal & Dial

3 specs
AR Coating
Inner
Yes
Dial Color
Bahama Blue
Black
Lume
Super-LumiNova
None

Movement

3 specs
Caliber
Sellita SW300-1
9R02
Type
Automatic
Spring Drive
Power Reserve
56h
84h

Pricing

1 specs
MSRP
$2,230
$84,000

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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.

Formex Reef 39.5 mm

The Formex Reef 39.5 mm is widely praised for its refined finishing, comfortable and well-proportioned case design, and impressive specifications for its price point, including COSC-certified Sellita SW300-1 movement and 300m water resistance. Owners and reviewers highlight the tool-less micro-adjust clasp and quick-release spring bars as practical features. Some reviewers note that the 22mm lug width feels slightly disproportionate to the smaller case, and the bracelet could benefit from more taper, though this is a point of contention for some owners who value the overall package. A prototype crown protrusion issue is noted as being addressed for production. On balance, owners and reviewers rate the Formex Reef 39.5 mm highly for its excellent value and well-executed design.

Grand Seiko SBGZ011

Grand Seiko SBGZ011 owners widely praise its in-person beauty and the finest Zaratsu polishing, noting that photos do not capture its artistry. Some owners find the framed logo and lettering detract from the dial's balance, and a few describe the watch as too flashy or "bling" for their taste, with one owner feeling its design deviates from Grand Seiko's ethos. The strap is also widely disliked. Overall, owners rate the Grand Seiko SBGZ011 highly for its stunning Zaratsu polishing and unique, beautiful in-person presence, despite some finding it overly flashy.

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