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 $900

At a glance

20 of 29 specs differ
Diameter
Dumas GMT44mm
CONQUEST29.5mm
Power Reserve
Dumas GMT40h
CONQUEST40h
Water Resistance
Dumas GMT300m
CONQUEST300m
MSRP
Dumas GMT$399
CONQUEST$900

Full specifications

Case

8 specs
Category
GMT
Diver
Diameter
44mm
29.5mm
Thickness
15mm
9.4mm
Lug-to-Lug
48mm
36.9mm
Lug Width
22mm
15mm
Material
316L Stainless Steel
Stainless Steel
Finish
Brushed and polished
Caseback
Solid
Screw-down case back

Crystal & Dial

4 specs
Crystal Shape
Flat
AR Coating
Inner
Underside
Indices
Applied
Applied Arabic numerals and indexes
Lume
None
Super-LumiNova

Movement

7 specs
Caliber
Seiko NH34A
L152.3
Type
Automatic
Quartz
Beat Rate
28,800 vph
25,200 vph
Jewels
25
0
Hacking
Yes
No
Hand-winding
Yes
No
Complications
None
Hours, minutes, seconds and date

Pricing

1 specs
MSRP
$399
$900

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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 widely praise the Longines CONQUEST for its clean, versatile design, excellent build quality, and comfortable wearability, with many highlighting its exceptional value around $1700. Reviewers and owners consistently note the high-quality finishing and the buttery smooth hand-winding feel. Some owners report accuracy figures around -2s/day. Criticisms include a lack of micro-adjustment on the bracelet clasp, a date wheel that may not match the dial, and lume that could be improved, with one reviewer observing that only the black dial version appears to have lumed hands. One owner found the watch underwhelming in person. Overall, owners and reviewers rate the Longines CONQUEST highly for its elegant, everyday sports watch appeal and solid finishing at its price point.

From video reviewers

The sunray dials are a key visual upgrade. The lume application is a noted drawback. Reviewers disagreed on the bracelet's feel compared to the Tudor Jubilee.

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