Side by side

Spinnaker Dumas GMTvsTudor Black Bay Pro

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

Dumas GMT
SpinnakerDumas GMT
MSRP $399
Black Bay Pro
TudorBlack Bay Pro
MSRP $5,075

At a glance

20 of 29 specs differ
Diameter
Dumas GMT44mm
Black Bay Pro39mm
Power Reserve
Dumas GMT40h
Black Bay Pro70h
Water Resistance
Dumas GMT300m
Black Bay Pro200m
MSRP
Dumas GMT$399
Black Bay Pro$5,075

Full specifications

Case

8 specs
Diameter
44mm
39mm
Thickness
15mm
14.6mm
Lug-to-Lug
48mm
46mm
Lug Width
22mm
20mm
Material
316L Stainless Steel
Stainless Steel
Finish
Brushed and polished
Polished + Satin
Water Resistance
300m
200m
Caseback
Solid
Solid screw-down

Crystal & Dial

4 specs
Crystal Shape
Flat
AR Coating
Inner
Dial Color
Blue
Black
Indices
Applied

Movement

7 specs
Caliber
Seiko NH34A
MT5652
Beat Rate
28,800 vph
0 vph
Power Reserve
40h
70h
Jewels
25
0
Hacking
Yes
No
Hand-winding
Yes
No
Complications
None
GMT

Pricing

1 specs
MSRP
$399
$5,075

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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 Black Bay Pro

The Tudor Black Bay Pro is praised for its handsome design, high-quality finishing, and 200-meter water resistance. Reviewers note its 39mm case size contributes to comfortable wear, though its 14.6mm thickness is considered substantial due to case design and movement height, giving it a satisfyingly chunky sport watch presence. Some find the three snowflake hands a minor aesthetic quibble. On balance, reviewers consider the Tudor Black Bay Pro a nice watch for enthusiasts at an attractive price point, appreciating its fixed steel bezel and contrasting date wheel.

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