Which is cheaper, the Gruppo Gamma Vanguard Weathered or the Longines HYDROCONQUEST GMT?

At MSRP the Gruppo Gamma Vanguard Weathered is the cheaper of the two at $790, against $3,350 for the Longines HYDROCONQUEST GMT — a $2,560 gap before any retailer discounting.

Which is bigger, the Gruppo Gamma Vanguard Weathered or the Longines HYDROCONQUEST GMT?

The Gruppo Gamma Vanguard Weathered wears larger at 42mm versus 41mm for the Longines HYDROCONQUEST GMT — a 1mm difference across the dial.

Which has better water resistance, the Gruppo Gamma Vanguard Weathered or the Longines HYDROCONQUEST GMT?

The Longines HYDROCONQUEST GMT is rated to 300m versus 100m for the Gruppo Gamma Vanguard Weathered.

Which has a longer power reserve, the Gruppo Gamma Vanguard Weathered or the Longines HYDROCONQUEST GMT?

The Gruppo Gamma Vanguard Weathered carries a 42-hour power reserve against 40 hours on the Longines HYDROCONQUEST GMT.

What movement does the Gruppo Gamma Vanguard Weathered run compared to the Longines HYDROCONQUEST GMT?

Both watches run automatic movements — the Gruppo Gamma Vanguard Weathered uses the Miyota 9039 and the Longines HYDROCONQUEST GMT uses the L844.5.

Side by side

Gruppo Gamma Vanguard WeatheredvsLongines HYDROCONQUEST GMT

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

Gruppo Gamma Vanguard Weathered

av-10

MSRP $790

Longines HYDROCONQUEST GMT

L3.790.4.06.6

MSRP $3,350

At a glance

13 of 29 specs differ

Diameter

Vanguard Weathered42mm

HYDROCONQUEST GMT41mm

Power Reserve

Vanguard Weathered42h

HYDROCONQUEST GMT40h

Water Resistance

Vanguard Weathered100m

HYDROCONQUEST GMT300m

MSRP

Vanguard Weathered$790

HYDROCONQUEST GMT$3,350

Full specifications

Case

7 specs

Crystal & Dial

3 specs

AR Coating

Yes

Inner

Dial Color

Forged Carbon

Green

Lume

Super-LumiNova

None

Movement

2 specs

Caliber

Miyota 9039

L844.5

Power Reserve

42h

40h

Pricing

1 specs

MSRP

$790

$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.

Gruppo Gamma Vanguard Weathered

The satin-finished steel case is well-executed and aesthetically pleasing. The watch's lumières de nuit are not particularly bright, which might be a drawback for some users. Reviewers disagree on the watch's originality, with one reviewer finding it pleasing in-person and another describing it as decidedly derivative.

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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