Side by side

Spinnaker Bradner GMTvsTudor Black Bay Chrono S&G

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

Bradner GMT
SpinnakerBradner GMT
MSRP $299
Black Bay Chrono S&G
TudorBlack Bay Chrono S&G
MSRP $8,525

At a glance

20 of 29 specs differ
Diameter
Bradner GMT42mm
Black Bay Chrono S&G41mm
Power Reserve
Bradner GMT40h
Black Bay Chrono S&G70h
Water Resistance
Bradner GMT180m
Black Bay Chrono S&G200m
MSRP
Bradner GMT$299
Black Bay Chrono S&G$8,525

Full specifications

Case

8 specs
Category
GMT
Chronograph
Diameter
42mm
41mm
Thickness
15mm
14.4mm
Lug-to-Lug
50mm
46mm
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
Black
Indices
Applied

Movement

7 specs
Caliber
Seiko NH34A
MT5813
Beat Rate
28,800 vph
0 vph
Power Reserve
40h
70h
Jewels
25
0
Hacking
Yes
No
Hand-winding
Yes
No
Complications
None
Chronograph

Pricing

1 specs
MSRP
$299
$8,525

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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 Chrono S&G

The Tudor Black Bay Chrono S&G is widely praised for its bold, vintage-inspired two-tone design, solid modern build, and attractive price point. Owners and reviewers highlight its well-made bracelet, T-fit clasp, and compelling styling, with some noting its unique, muted gold tone that is less flashy than other gold watches. One owner reported excellent timing accuracy of +/- 1 second per day. The Tudor Black Bay Chrono S&G utilizes the MT5813 movement, a modified Breitling B01, offering a 70-hour power reserve. However, some find the 45-minute chronograph register less practical than a 60-minute counter, and the use of gold capping on the bracelet and bezel is a point of contention for some, with one user also noting faux bracelet rivets as a detractor. The watch's thickness and lug structure are also cited as potential drawbacks for wearability on smaller wrists.

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