Side by side

Formex Reef 42 mmvsLongines HYDROCONQUEST GMT

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

Reef 42 mm
FormexReef 42 mm
MSRP $2,414
HYDROCONQUEST GMT
LonginesHYDROCONQUEST GMT
MSRP $3,350

At a glance

9 of 29 specs differ
Diameter
Reef 42 mm42mm
HYDROCONQUEST GMT41mm
Power Reserve
Reef 42 mm56h
HYDROCONQUEST GMT40h
Water Resistance
Reef 42 mm300m
HYDROCONQUEST GMT300m
MSRP
Reef 42 mm$2,414
HYDROCONQUEST GMT$3,350

Full specifications

Case

4 specs
Diameter
42mm
41mm
Thickness
11.4mm
12.9mm
Lug-to-Lug
47mm
49.4mm
Lug Width
22mm
21mm

Crystal & Dial

2 specs
Dial Color
Black
Green
Lume
Super-LumiNova
None

Movement

2 specs
Caliber
Sellita SW300-1
L844.5
Power Reserve
56h
40h

Pricing

1 specs
MSRP
$2,414
$3,350

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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 42 mm

The Formex Reef 42 mm is widely praised for its comfortable bracelet featuring a micro-adjust clasp, COSC-certified Sellita movement, and excellent build quality. Owners appreciate the gradient dial's visual appeal and the overall wearability. Some owners note the seconds hand does not perfectly align with markers, and one owner found the lugs' taper hinders third-party strap fit. The bracelet's length and sporty design are noted as limiting versatility by some. On balance, owners and reviewers rate the Formex Reef 42 mm highly for its impressive wearability and value at the price point.

Longines HYDROCONQUEST GMT

Owners widely praise the Longines HYDROCONQUEST GMT for its excellent finishing, smooth winding action, and overall value, with some finding its build quality and colorways superior to higher-priced competitors. Reviewers and owners alike note its robustness as a traveler's dive watch with a true GMT movement. Some owners find the round markers at 6 and 9 disrupt dial symmetry, and the GMT hour markers are described as tiny and difficult to read. The date wheel can be mismatched on certain dial colors, and the bracelet clasp is noted as sharp by one reviewer. While some owners wish for a smaller case size, others find the 41mm comfortable. The bezel action is flagged as having bounce-back by one owner, though the brushed finish effectively hides wear. Overall, owners and reviewers rate the Longines HYDROCONQUEST GMT highly for its robust build and excellent value proposition.

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