Side by side

Tudor Black Bay 68vsLongines HYDROCONQUEST GMT

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

Black Bay 68
TudorBlack Bay 68
MSRP $5,475
HYDROCONQUEST GMT
LonginesHYDROCONQUEST GMT
MSRP $3,350

At a glance

15 of 29 specs differ
Diameter
Black Bay 6843mm
HYDROCONQUEST GMT43mm
Power Reserve
Black Bay 6870h
HYDROCONQUEST GMT72h
Water Resistance
Black Bay 68200m
HYDROCONQUEST GMT300m
MSRP
Black Bay 68$5,475
HYDROCONQUEST GMT$3,350

Full specifications

Case

5 specs
Thickness
13.6mm
12.9mm
Lug-to-Lug
46mm
52mm
Finish
Polished + Satin
Brushed and polished
Water Resistance
200m
300m
Caseback
Solid screw-down
Solid

Crystal & Dial

3 specs
Crystal Shape
Flat
AR Coating
Inner
Dial Color
Blue
Green

Movement

6 specs
Caliber
MT5601-U
L844.5
Beat Rate
0 vph
28,800 vph
Power Reserve
70h
72h
Jewels
0
25
Hacking
No
Yes
Hand-winding
No
Yes

Pricing

1 specs
MSRP
$5,475
$3,350

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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.

Tudor Black Bay 68

The Tudor Black Bay 68 is praised for its METAS Master Chronometer-certified MT5601-U movement, which provides superior accuracy of -2/+4 seconds per day and a 70-hour power reserve. Reviewers highlight its comfortable 13.6mm thickness and the appeal of the Tudor blue dial with a matte black bezel insert. The watch features a brushed and polished 43mm case, a domed sapphire crystal, and a bracelet without faux rivets. On balance, reviewers find the Tudor Black Bay 68 a sensible, larger vintage-inspired diver with excellent timekeeping.

Longines HYDROCONQUEST GMT

The Longines HYDROCONQUEST GMT is widely praised for its excellent finishing, with some comparing it favorably to higher-end dive watches, and its attractive blue sunburst dial. Owners note its practical true GMT complication and robust 41mm brushed case with ceramic bezel, powered by a movement offering a 72-hour power reserve. Some in the community find the round markers at 6 and 9 disrupt dial symmetry, though others appreciate this design element. A common criticism is the difficulty in reading the tiny GMT text beneath the hour markers, and the absence of a quick date adjust feature. One owner reported a sharp feeling on the bracelet's clasp, and another flagged mismatched date wheel colors on certain dial variants. Overall, owners and reviewers consider the Longines HYDROCONQUEST GMT a strong value proposition for a traveler's dive watch, citing its build quality and GMT functionality as key strengths.

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