Side by side

Sugess MoonPhase Master S389vsSpinnaker Dumas GMT

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

MoonPhase Master S389
SugessMoonPhase Master S389
MSRP $599
Dumas GMT
SpinnakerDumas GMT
MSRP $399

At a glance

16 of 29 specs differ
Diameter
MoonPhase Master S38940mm
Dumas GMT44mm
Power Reserve
MoonPhase Master S38935h
Dumas GMT40h
Water Resistance
MoonPhase Master S38950m
Dumas GMT300m
MSRP
MoonPhase Master S389$599
Dumas GMT$399

Full specifications

Case

8 specs
Category
Chronograph
GMT
Diameter
40mm
44mm
Thickness
12mm
15mm
Lug-to-Lug
46mm
48mm
Lug Width
20mm
22mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
50m
300m
Caseback
Display
Solid

Crystal & Dial

2 specs
Dial Color
2 Salmon
Blue
Lume
Tritium
None

Movement

5 specs
Caliber
Seagull ST19
Seiko NH34A
Type
Manual
Automatic
Beat Rate
3 vph
28,800 vph
Power Reserve
35h
40h
Complications
GMT, Chronograph, Moonphase, Date
None

Pricing

1 specs
MSRP
$599
$399

Follow this matchup

Get a note when Sugess MoonPhase Master S389 vs Spinnaker Dumas GMT 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.

Sugess MoonPhase Master S389

Owners widely praise the Sugess MoonPhase Master S389 for its beautiful dial and glowing moonphase, with some finding it a stunner that exceeds expectations and a bargain for the price. However, reviewers and owners alike flag rotor noise and thickness as potential drawbacks, and one owner reported receiving a defective unit. Accuracy is reported at -6 seconds per day, and while the dial features applied markers and polished hands, the movement finishing is noted as rough under magnification. Overall, owners rate the Sugess MoonPhase Master S389 highly for its aesthetic appeal and value, despite some concerns regarding rotor noise and build quality consistency.

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.

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.