Side by side

Seiko Prospex LX linevsTudor 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 LX line

Owners widely report the dial's blue-green sunburst is phenomenal, and the sapphire glass features blue AR coating. Some owners feel the high price limits discounts and sales, with one AD noting extremely low sales due to the cost. One owner reported DLC peeling off a two-week-old watch, and another noted quality control issues like bezel inserts and fallen second hands. On balance, owners consider the Seiko Prospex LX line a nicely built watch, though pricing led to poor sales and its discontinuation.

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

15 of 29 specs differ
Diameter
Prospex LX line44.8mm
Black Bay GMT41mm
Power Reserve
Prospex LX line72h
Black Bay GMT70h
Water Resistance
Prospex LX line200m
Black Bay GMT200m
MSRP
Prospex LX line$5,500
Black Bay GMT$5,275

Full specifications

Case

6 specs
Diameter
44.8mm
41mm
Thickness
14.7mm
14.6mm
Lug-to-Lug
50.9mm
0mm
Material
Titanium
Stainless Steel
Finish
Polished + Satin
Caseback
Solid screw-down

Crystal & Dial

3 specs
AR Coating
Super-clear coating
Dial Color
Black
Lume
LumiBrite on hands and index(es)
None

Movement

5 specs
Caliber
5R66
MT5652
Type
Spring Drive
Automatic
Power Reserve
72h
70h
Jewels
30
0
Complications
None
GMT

Pricing

1 specs
MSRP
$5,500
$5,275
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.

Follow this matchup

Get a note when Seiko Prospex LX line vs Tudor Black Bay GMT gets more votes, a community discussion, or a price drop. No account needed.

Adjacent matchups

People also compared

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