Side by side

Formex Reef 39.5 mmvsLongines HYDROCONQUEST MESH

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
HYDROCONQUEST MESH
LonginesHYDROCONQUEST MESH
MSRP $2,350

At a glance

9 of 29 specs differ
Diameter
Reef 39.5 mm39.5mm
HYDROCONQUEST MESH41mm
Power Reserve
Reef 39.5 mm56h
HYDROCONQUEST MESH72h
Water Resistance
Reef 39.5 mm300m
HYDROCONQUEST MESH300m
MSRP
Reef 39.5 mm$2,230
HYDROCONQUEST MESH$2,350

Full specifications

Case

4 specs
Diameter
39.5mm
41mm
Thickness
11mm
11.9mm
Lug-to-Lug
45.5mm
51.1mm
Lug Width
22mm
21mm

Crystal & Dial

2 specs
Dial Color
Bahama Blue
Black
Lume
Super-LumiNova
None

Movement

2 specs
Caliber
Sellita SW300-1
L888.5
Power Reserve
56h
72h

Pricing

1 specs
MSRP
$2,230
$2,350

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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.

Longines HYDROCONQUEST MESH

Owners widely praise the Longines HYDROCONQUEST MESH for its eye-catching dial colors and impressive fit and finish at its price point, with some noting a well-regulated movement losing around 2 seconds per day and others seeing accuracy within COSC specifications. The tapered mesh bracelet is described as a clever execution with emphasized adjustability, offering a neat feature for wrist swelling. However, some owners criticize the bracelet's clasp for lacking on-the-fly micro-adjustments and the potential for pinching, while winding the screw-down crown is considered inconvenient by some. The lume is a point of contention, with one owner finding it disappointing and fading quickly, while another reports it as strong and long-lasting. Overall, owners rate the Longines HYDROCONQUEST MESH highly for its competitive pricing and versatile, modern retro aesthetic.

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