Side by side

Spinnaker Dumas GMTvsLongines HYDROCONQUEST

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

Dumas GMT
SpinnakerDumas GMT
MSRP $399
HYDROCONQUEST
LonginesHYDROCONQUEST
MSRP $2,000

At a glance

19 of 29 specs differ
Diameter
Dumas GMT44mm
HYDROCONQUEST41mm
Power Reserve
Dumas GMT40h
HYDROCONQUEST72h
Water Resistance
Dumas GMT300m
HYDROCONQUEST300m
MSRP
Dumas GMT$399
HYDROCONQUEST$2,000

Full specifications

Case

8 specs
Category
GMT
Diver
Diameter
44mm
41mm
Thickness
15mm
11.9mm
Lug-to-Lug
48mm
53.5mm
Lug Width
22mm
21mm
Material
316L Stainless Steel
Ceramic
Finish
Brushed and polished
Caseback
Solid

Crystal & Dial

4 specs
Crystal Shape
Flat
AR Coating
Inner
Dial Color
Blue
Green
Indices
Applied

Movement

6 specs
Caliber
Seiko NH34A
L888.5
Beat Rate
28,800 vph
0 vph
Power Reserve
40h
72h
Jewels
25
0
Hacking
Yes
No
Hand-winding
Yes
No

Pricing

1 specs
MSRP
$399
$2,000

Follow this matchup

Get a note when Spinnaker Dumas GMT vs Longines HYDROCONQUEST 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.

Spinnaker Dumas GMT

Owners praise the Spinnaker Dumas GMT's satisfying lume, including on the crown, and good finishing, with one owner finding it wears well on a 17cm wrist. The watch features a Seiko NH34A GMT movement and a blue gradient dial. Reviewers note its 44mm diameter and 209g weight on the bracelet make it unsuitable for smaller wrists.

Longines HYDROCONQUEST

Owners widely praise the Longines Hydroconquest for its attractive sunburst blue dial and accurate timekeeping, with one owner reporting a loss of only 2 seconds per day. However, the bracelet is frequently criticized for lacking micro-adjustments and having pinch-prone links, and the screw-down crown is noted as inconvenient and difficult to operate by multiple owners. Some owners also flag the bezel action as ratchety with back play, and one owner found the lugs sharp and the overall design uncomfortable, leading them to sell the watch. On balance, owners appreciate the Longines Hydroconquest's aesthetic appeal and value, despite significant reservations about its bracelet and crown usability.

From video reviewers

The bezel action is praised for its smooth and precise rotation. Lume brightness is a shared weakness, found to be somewhat lacking. Reviewers disagreed on the watch's value proposition compared to alternatives.

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.