Side by side

Spinnaker Dumas GMTvsTudor Royal

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

Dumas GMT
SpinnakerDumas GMT
MSRP $399
Royal
TudorRoyal
MSRP $4,100

At a glance

18 of 29 specs differ
Diameter
Dumas GMT44mm
Royal30mm
Power Reserve
Dumas GMT40h
Royal50h
Water Resistance
Dumas GMT300m
Royal100m
MSRP
Dumas GMT$399
Royal$4,100

Full specifications

Case

9 specs
Category
GMT
Diameter
44mm
30mm
Thickness
15mm
8.7mm
Lug-to-Lug
48mm
46mm
Lug Width
22mm
7mm
Material
316L Stainless Steel
Stainless Steel
Finish
Brushed and polished
Polished + Satin
Water Resistance
300m
100m
Caseback
Solid
Solid screw-down

Crystal & Dial

2 specs
Crystal Shape
Flat
AR Coating
Inner

Movement

6 specs
Caliber
Seiko NH34A
MT5201
Beat Rate
28,800 vph
0 vph
Power Reserve
40h
50h
Jewels
25
0
Hacking
Yes
No
Hand-winding
Yes
No

Pricing

1 specs
MSRP
$399
$4,100

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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.

Tudor Royal

Owners widely praise the Tudor Royal's integrated bracelet, with many calling it the star of the watch, noting its excellent finishing and comfortable wearability, and several reviewers highlight its attractive value proposition starting under $3,000. Some owners find its Roman numerals and bezel lean dressy, while others appreciate its toned-down bezel and find the watch looks better in person. Accuracy figures range from +1 second per day to about -6 seconds per day, and the 38-hour power reserve is noted as a drawback by some. The lack of bracelet micro-adjustment makes achieving a perfect fit difficult for some owners, and the date window's placement is seen as a missed opportunity for better dial balance. Overall, owners rate the Tudor Royal highly for its bracelet finishing and value at the price.

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