Side by side

Longines HYDROCONQUEST GMTvsLongines LONGINES SPIRIT FLYBACK PROTOTYPE

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

HYDROCONQUEST GMT
LonginesHYDROCONQUEST GMT
MSRP $3,350
LONGINES SPIRIT FLYBACK PROTOTYPE
LonginesLONGINES SPIRIT FLYBACK PROTOTYPE
MSRP $7,400

At a glance

8 of 29 specs differ
Diameter
HYDROCONQUEST GMT43mm
LONGINES SPIRIT FLYBACK PROTOTYPE42mm
Power Reserve
HYDROCONQUEST GMT72h
LONGINES SPIRIT FLYBACK PROTOTYPE40h
Water Resistance
HYDROCONQUEST GMT300m
LONGINES SPIRIT FLYBACK PROTOTYPE100m
MSRP
HYDROCONQUEST GMT$3,350
LONGINES SPIRIT FLYBACK PROTOTYPE$7,400

Full specifications

Case

5 specs
Category
Diver
Chronograph
Diameter
43mm
42mm
Thickness
12.9mm
17mm
Lug-to-Lug
52mm
49.5mm
Water Resistance
300m
100m

Movement

2 specs
Caliber
L844.5
L791.4
Power Reserve
72h
40h

Pricing

1 specs
MSRP
$3,350
$7,400

Follow this matchup

Get a note when Longines HYDROCONQUEST GMT vs LONGINES SPIRIT FLYBACK PROTOTYPE gets more votes, a community discussion, or a price drop. No account needed.

What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Longines HYDROCONQUEST GMT

The Longines HYDROCONQUEST GMT is widely praised for its excellent finishing, with some comparing it favorably to higher-end dive watches, and its attractive blue sunburst dial. Owners note its practical true GMT complication and robust 41mm brushed case with ceramic bezel, powered by a movement offering a 72-hour power reserve. Some in the community find the round markers at 6 and 9 disrupt dial symmetry, though others appreciate this design element. A common criticism is the difficulty in reading the tiny GMT text beneath the hour markers, and the absence of a quick date adjust feature. One owner reported a sharp feeling on the bracelet's clasp, and another flagged mismatched date wheel colors on certain dial variants. Overall, owners and reviewers consider the Longines HYDROCONQUEST GMT a strong value proposition for a traveler's dive watch, citing its build quality and GMT functionality as key strengths.

LONGINES SPIRIT FLYBACK PROTOTYPE

Owners widely praise the Longines Spirit Flyback Prototype for its attractive finishing, COSC-certified movement, and value as a flyback chronograph. Reviewers highlight its refined 39.5mm case and simplified dial, while some owners appreciate the reduced thickness and improved wearability compared to larger variants, with a lug-to-lug distance noted as potentially long for smaller wrists. The watch features a 68-hour power reserve and a bespoke L791.4 movement. However, the case thickness is a consistent point of discussion, with multiple sources citing 17mm, though some reviewers suggest thoughtful design makes it wear closer to 13.5-14mm. Owners are split on the dial's aesthetic, with some preferring previous configurations with gold subdial rings and concentric textures over the current flat matte dial and cut-off numbers. The leather strap is also noted as stiff and pinching.

Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.