Side by side

Spinnaker Dumas GMTvsLongines CONQUEST

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

Dumas GMT
SpinnakerDumas GMT
MSRP $399
CONQUEST
LonginesCONQUEST
MSRP $2,850

At a glance

20 of 29 specs differ
Diameter
Dumas GMT44mm
CONQUEST30mm
Power Reserve
Dumas GMT40h
CONQUEST45h
Water Resistance
Dumas GMT300m
CONQUEST100m
MSRP
Dumas GMT$399
CONQUEST$2,850

Full specifications

Case

9 specs
Category
GMT
Sport
Diameter
44mm
30mm
Thickness
15mm
9.7mm
Lug-to-Lug
48mm
37.8mm
Lug Width
22mm
15mm
Material
316L Stainless Steel
Stainless Steel
Finish
Brushed and polished
Water Resistance
300m
100m
Caseback
Solid
Screw-down and transparent with sapphire crystal case back

Crystal & Dial

4 specs
Crystal Shape
Flat
AR Coating
Inner
Both sides
Indices
Applied
Diamond indexes
Lume
None
Super-LumiNova

Movement

6 specs
Caliber
Seiko NH34A
L592.5
Power Reserve
40h
45h
Jewels
25
0
Hacking
Yes
No
Hand-winding
Yes
No
Complications
None
Hours, minutes, seconds and date

Pricing

1 specs
MSRP
$399
$2,850

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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.

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 CONQUEST

Owners and reviewers widely praise the Longines CONQUEST for its high-quality finishing, versatile design, and exceptional value, with many highlighting its comfortable wearability and solid build. Accuracy figures are generally positive, with one owner reporting +1/+2 seconds per day. However, several owners note that the bracelet lacks micro-adjustment, which can affect fit, and some find the lume to be weak or inconsistently applied across variants. One owner also mentioned the crown rubbing against the wrist. On balance, owners and reviewers rate the Longines CONQUEST highly for its blend of elegant design and robust build at an accessible price point.

From video reviewers

The perfectly balanced case size is a key strength of the Longines Conquest. A notable weakness is the somewhat lacking lume brightness. Reviewers disagree on the ideal case size, with one preferring 38mm and the other 39mm.

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