Side by side

Spinnaker Bradner GMTvsTudor Black Bay 54

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

Bradner GMT
SpinnakerBradner GMT
MSRP $299
Black Bay 54
TudorBlack Bay 54
MSRP $4,725

At a glance

20 of 29 specs differ
Diameter
Bradner GMT42mm
Black Bay 5437mm
Power Reserve
Bradner GMT40h
Black Bay 5470h
Water Resistance
Bradner GMT180m
Black Bay 54200m
MSRP
Bradner GMT$299
Black Bay 54$4,725

Full specifications

Case

9 specs
Category
GMT
Diver
Diameter
42mm
37mm
Thickness
15mm
11.2mm
Lug-to-Lug
50mm
46mm
Lug Width
22mm
20mm
Material
316L Stainless Steel
Stainless Steel
Finish
Brushed and polished
Polished + Satin
Water Resistance
180m
200m
Caseback
Solid
Solid screw-down

Crystal & Dial

4 specs
Crystal Shape
Flat
AR Coating
Inner
Dial Color
Brown
Blue
Lume
None
Super-LumiNova

Movement

6 specs
Caliber
Seiko NH34A
MT5400
Beat Rate
28,800 vph
0 vph
Power Reserve
40h
70h
Jewels
25
0
Hacking
Yes
No
Hand-winding
Yes
No

Pricing

1 specs
MSRP
$299
$4,725

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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 Bradner GMT

The Spinnaker Bradner GMT is praised for its awesome lume and comfortable wearability, with one owner noting the rubber strap is very comfortable and the beads of rice bracelet fits well on smaller wrists. Some find its 15mm thickness and bold colorway may not appeal to everyone, and one owner views it as more of a casual GMT with tool-watch styling than a diver. Overall, owners rate the Spinnaker Bradner GMT highly for its value and comfortable wearability.

Tudor Black Bay 54

The Tudor Black Bay 54 is widely praised for its compact 37mm size and thin 11.2mm case, offering surprising wrist presence and comfortable wearability with a vintage aesthetic. Reviewers highlight its robust 200-meter water resistance, clean design, and modern features without compromise, powered by Tudor's MT5400 movement with a 70-hour power reserve. One reviewer noted a preference for true vintage or more modern Tudor offerings over time. On balance, reviewers rate the Tudor Black Bay 54 highly for its faithful vintage design and comfortable, modern dive watch experience.

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