Which is cheaper, the Spinnaker Dumas GMT or the Longines CONQUEST?

At MSRP the Spinnaker Dumas GMT is the cheaper of the two at $399, against $4,750 for the Longines CONQUEST — a $4,351 gap before any retailer discounting.

Which is bigger, the Spinnaker Dumas GMT or the Longines CONQUEST?

The Spinnaker Dumas GMT wears larger at 44mm versus 34mm for the Longines CONQUEST — a 10mm difference across the dial.

Which has better water resistance, the Spinnaker Dumas GMT or the Longines CONQUEST?

The Spinnaker Dumas GMT is rated to 300m versus 100m for the Longines CONQUEST.

What movement does the Spinnaker Dumas GMT run compared to the Longines CONQUEST?

Both watches run automatic movements — the Spinnaker Dumas GMT uses the Seiko NH34A and the Longines CONQUEST uses the L888.5.

Side by side

Spinnaker Dumas GMTvsLongines CONQUEST

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

Spinnaker Dumas GMT

dumas-gmt-automatic-ocean-blue-sp-5119-55

MSRP $399

Longines CONQUEST

L3.430.0.87.6

MSRP $4,750

At a glance

10 of 29 specs differ

Diameter

Dumas GMT44mm

CONQUEST34mm

Power Reserve

Dumas GMT40h

CONQUEST40h

Water Resistance

Dumas GMT300m

CONQUEST100m

MSRP

Dumas GMT$399

CONQUEST$4,750

Full specifications

Case

7 specs

Crystal & Dial

1 specs

Dial Color

Blue

Mother of Pearl

Movement

1 specs

Caliber

Seiko NH34A

L888.5

Pricing

1 specs

MSRP

$399

$4,750

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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.

Fratello

Longines CONQUEST

Owners widely praise the Longines CONQUEST for its versatile, aesthetically pleasing design, comfortable wearability, and excellent value, with many highlighting its high-quality finishing and smooth winding action. Reviewers and owners alike note the watch's well-wearing size and blend of vintage and modern design elements. Some owners report the polished surfaces can be prone to scratches, and multiple sources flag the bracelet's lack of micro-adjustment as a significant drawback impacting fit. Lume quality is also a recurring point of criticism, with one reviewer noting only the black dial version appears to have lumed hands. Overall, owners and reviewers consider the Longines CONQUEST a highly versatile and well-built everyday sports watch offering significant value.

From video reviewers

The elegant gold dial is a notable aspect of the Longines CONQUEST. The quartz movement may be a drawback for collectors who prefer mechanical movements. Reviewers disagree on the standout feature, with one highlighting the gold dial and the other the Blue Sunburst dial.

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