Side by side

Glycine Combat Sub Sport GMTvsTudor Black Bay GMT

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

Combat Sub Sport GMT
GlycineCombat Sub Sport GMT
MSRP $2,995
Black Bay GMT
TudorBlack Bay GMT
MSRP $5,275

At a glance

18 of 29 specs differ
Diameter
Combat Sub Sport GMT42mm
Black Bay GMT41mm
Power Reserve
Combat Sub Sport GMT48h
Black Bay GMT70h
Water Resistance
Combat Sub Sport GMT200m
Black Bay GMT200m
MSRP
Combat Sub Sport GMT$2,995
Black Bay GMT$5,275

Full specifications

Case

5 specs
Diameter
42mm
41mm
Thickness
10.85mm
14.6mm
Lug-to-Lug
46mm
Finish
Polished + Satin
Caseback
Solid screw-down

Crystal & Dial

5 specs
Crystal Shape
AR Coating
Dial Color
Blue
Black
Indices
Lume
Luminous
None

Movement

7 specs
Caliber
SW330-2
MT5652
Beat Rate
28,800 vph
0 vph
Power Reserve
48h
70h
Jewels
25
0
Hacking
Yes
No
Hand-winding
Yes
No
Complications
GMT, Date
GMT

Pricing

1 specs
MSRP
$2,995
$5,275

Follow this matchup

Get a note when Glycine Combat Sub Sport GMT vs Tudor Black Bay GMT gets more votes, a community discussion, or a price drop. No account needed.

What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Glycine Combat Sub Sport GMT

Owners widely praise the Glycine Combat Sub Sport GMT for its solid build, slim wearability, and value, with many noting its comfortable fit due to curved lugs and thin case. Reviewers highlight its classic design, unique dial, and legible date window, while some owners report excellent bezel action and accuracy under +1 second per day after regulation. A minor criticism is a slightly off-color lume pip on the chapter ring, and one owner notes sub-par lume and inconsistent power reserve not always reaching 42 hours. On balance, owners and reviewers rate the Glycine Combat Sub Sport GMT highly for its comfortable wearability and value at the price point.

Tudor Black Bay GMT

The Tudor Black Bay GMT is widely praised for its in-house movement offering local jumping GMT functionality, its impressive case finishing, and its vintage-inspired, drop-dead good looks. Reviewers highlight its strong value and consider it a quintessential sport watch for travelers. Some enthusiasts find its 15mm thickness divisive, though beveled edges visually reduce its perceived size. Overall, reviewers rate the Tudor Black Bay GMT highly for its excellent design and travel functionality at its price point.

Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.