Side by side

Mark Time Watches M 6vsSpinnaker Dumas GMT

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

M 6
Mark Time WatchesM 6
MSRP $495
Dumas GMT
SpinnakerDumas GMT
MSRP $399
What people say

Owners + reviewers, side by side

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

Mark Time Watches M 6

The Mark Time Watches M 6 features a 39mm case with a deep black dial that gives the hands a floating appearance, and the second hand extends to the edge of the dial. Owners appreciate the absence of a ghost date position, a minimalist logo, and actual bezel screws. However, some find telling time to the nearest minute or two is challenging. Overall, owners value the M 6 for its thoughtful design elements like the full-length second hand and functional bezel screws.

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.

At a glance

11 of 29 specs differ
Diameter
M 639mm
Dumas GMT44mm
Power Reserve
M 6
Dumas GMT40h
Water Resistance
M 6100m
Dumas GMT300m
MSRP
M 6$495
Dumas GMT$399

Full specifications

Case

7 specs
Category
GMT
Diameter
39mm
44mm
Thickness
10.6mm
15mm
Lug-to-Lug
45mm
48mm
Lug Width
20mm
22mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
100m
300m

Crystal & Dial

1 specs
Dial Color
Blue

Movement

2 specs
Caliber
Miyota 9039
Seiko NH34
Power Reserve
40h

Pricing

1 specs
MSRP
$495
$399
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