Side by side

Seiko Prospex Land Mechanical GMTvsTudor Black Bay GMT

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

What people say

Owners + reviewers, side by side

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

Seiko Prospex Land Mechanical GMT

Owners widely praise the Seiko Prospex Land Mechanical GMT for its faithful reconstruction of a classic design, comfortable bracelet, and attractive gray dial with a bubbly crystal. Reviewers highlight its handsome everyday sports watch appeal, solid specifications, and classic Seiko diver aesthetics, offering great value. However, community members are divided on the 6R movement's accuracy, with some reporting significant deviations even after regulation, while others find it competitive for the price. A point of contention is the GMT function, with some wishing for a "flyer" style local jump GMT instead of the "caller" type, and the internal compass bezel is described as finicky and difficult to read. Owners generally consider the Seiko Prospex Land Mechanical GMT overpriced at its retail price, suggesting better value is found on sale or closer to $700.

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.

At a glance

18 of 29 specs differ
Diameter
Prospex Land Mechanical GMT39.5mm
Black Bay GMT41mm
Power Reserve
Prospex Land Mechanical GMT72h
Black Bay GMT70h
Water Resistance
Prospex Land Mechanical GMT200m
Black Bay GMT200m
MSRP
Prospex Land Mechanical GMT$1,150
Black Bay GMT$5,275

Full specifications

Case

6 specs
Diameter
39.5mm
41mm
Thickness
13.6mm
14.6mm
Lug-to-Lug
46.4mm
46mm
Lug Width
20mm
22mm
Finish
Brushed and polished
Polished + Satin
Caseback
Solid
Solid screw-down

Crystal & Dial

4 specs
Crystal Shape
Curved
AR Coating
Anti-reflective coating on inner surface
Indices
Applied
Lume
LumiBrite on hands and index(es)
None

Movement

7 specs
Caliber
6R54
MT5652
Beat Rate
28,800 vph
0 vph
Power Reserve
72h
70h
Jewels
24
0
Hacking
Yes
No
Hand-winding
Yes
No
Complications
None
GMT

Pricing

1 specs
MSRP
$1,150
$5,275
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