Side by side

Tissot Gentleman Open HeartvsLongines HYDROCONQUEST GMT

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

Gentleman Open Heart
TissotGentleman Open Heart
MSRP $1,025
HYDROCONQUEST GMT
LonginesHYDROCONQUEST GMT
MSRP $3,350

At a glance

13 of 29 specs differ
Diameter
Gentleman Open Heart40mm
HYDROCONQUEST GMT41mm
Power Reserve
Gentleman Open Heart80h
HYDROCONQUEST GMT40h
Water Resistance
Gentleman Open Heart100m
HYDROCONQUEST GMT300m
MSRP
Gentleman Open Heart$1,025
HYDROCONQUEST GMT$3,350

Full specifications

Case

5 specs
Category
Chronograph
Diver
Diameter
40mm
41mm
Thickness
11.5mm
12.9mm
Lug-to-Lug
40mm
49.4mm
Water Resistance
100m
300m

Crystal & Dial

5 specs
Crystal Shape
Domed
Flat
AR Coating
Yes
Inner
Dial Color
Silver
Green
Indices
Indexes
Applied
Lume
Super-LumiNova ®
None

Movement

2 specs
Caliber
L844.5
Power Reserve
80h
40h

Pricing

1 specs
MSRP
$1,025
$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.

Tissot Gentleman Open Heart

Owners widely praise the Tissot Gentleman Open Heart for its versatile dressy-sporty aesthetic and elegant sunburst dial finish, with one owner preferring its less shiny blue dial compared to other versions. The watch offers excellent fit and bracelet adjustability, and its modified Powermatic 80 movement achieves COSC-level accuracy of -3 to +5 seconds/day, though the seconds hand movement is slightly less smooth at 6 movements per second. However, one owner reported the watch arrived non-functional, requiring a return due to an inoperable movement. On balance, owners rate the Tissot Gentleman Open Heart highly for its aesthetic appeal and accurate timekeeping, despite a reported instance of a faulty movement.

Longines HYDROCONQUEST GMT

Owners widely praise the Longines HYDROCONQUEST GMT for its excellent finishing, smooth winding action, and overall value, with some finding its build quality and colorways superior to higher-priced competitors. Reviewers and owners alike note its robustness as a traveler's dive watch with a true GMT movement. Some owners find the round markers at 6 and 9 disrupt dial symmetry, and the GMT hour markers are described as tiny and difficult to read. The date wheel can be mismatched on certain dial colors, and the bracelet clasp is noted as sharp by one reviewer. While some owners wish for a smaller case size, others find the 41mm comfortable. The bezel action is flagged as having bounce-back by one owner, though the brushed finish effectively hides wear. Overall, owners and reviewers rate the Longines HYDROCONQUEST GMT highly for its robust build and excellent value proposition.

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