Side by side

Spinnaker Bradner GMTvsTudor Black Bay Ceramic

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

Bradner GMT
SpinnakerBradner GMT
MSRP $299
Black Bay Ceramic
TudorBlack Bay Ceramic
MSRP $6,125

At a glance

11 of 29 specs differ
Diameter
Bradner GMT42mm
Black Bay Ceramic41mm
Power Reserve
Bradner GMT40h
Black Bay Ceramic70h
Water Resistance
Bradner GMT180m
Black Bay Ceramic200m
MSRP
Bradner GMT$299
Black Bay Ceramic$6,125

Full specifications

Case

7 specs
Category
GMT
Diver
Diameter
42mm
41mm
Thickness
15mm
14.4mm
Lug-to-Lug
50mm
46mm
Material
316L Stainless Steel
Ceramic
Water Resistance
180m
200m
Caseback
Solid
Engraved

Crystal & Dial

1 specs
Dial Color
Brown
Black

Movement

2 specs
Caliber
Seiko NH34A
MT5602-1U
Power Reserve
40h
70h

Pricing

1 specs
MSRP
$299
$6,125

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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 Ceramic

The Tudor Black Bay Ceramic's matte ceramic case and bracelet offer a stealthy, scratch-proof aesthetic that shifts from anthracite to gray in light. Reviewers note its comfortable wearability, with one highlighting improved comfort over steel versions, and praise the METAS-certified MT5602-U movement. However, the sandblasted finishing is described as lacking contrast, and the bracelet's butterfly clasp omits on-the-fly adjustment. The PVD-treated steel bezel ring is also flagged as a potential wear-and-tear vulnerability. On balance, reviewers find the Tudor Black Bay Ceramic appealing for its unique ceramic construction and durable, stealthy finish, despite some functional limitations.

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