Side by side

Tissot Gentleman Open HeartvsZelos Hammerhead V3 300m Bronze

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
Hammerhead V3 300m Bronze
ZelosHammerhead V3 300m Bronze
MSRP $449

At a glance

16 of 29 specs differ
Diameter
Gentleman Open Heart40mm
Hammerhead V3 300m Bronze44mm
Power Reserve
Gentleman Open Heart80h
Hammerhead V3 300m Bronze40h
Water Resistance
Gentleman Open Heart100m
Hammerhead V3 300m Bronze300m
MSRP
Gentleman Open Heart$1,025
Hammerhead V3 300m Bronze$449

Full specifications

Case

7 specs
Category
Chronograph
Diver
Diameter
40mm
44mm
Thickness
11.5mm
13mm
Lug-to-Lug
40mm
44mm
Lug Width
21mm
22mm
Material
Stainless Steel
Titanium
Water Resistance
100m
300m

Crystal & Dial

6 specs
Crystal
Sapphire
Domed Sapphire
Crystal Shape
Domed
Flat
AR Coating
Yes
Inner
Dial Color
Silver
Bronze - Frost
Indices
Indexes
Applied
Lume
Super-LumiNova ®
None

Movement

2 specs
Caliber
Seiko NH35
Power Reserve
80h
40h

Pricing

1 specs
MSRP
$1,025
$449

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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.

Zelos Hammerhead V3 300m Bronze

Owners widely praise the Zelos Hammerhead V3 300m Bronze for its distinctive 70s-inspired design, slim 13.5mm case, and improved lume, offering a sophisticated timepiece at an accessible price point starting at $349. The unique dial is noted for evoking an otherworldly feeling, and the comfortable bracelet features on-the-fly micro-adjustment. Some enthusiasts express frustration with shipping delays and a desire to see the watch on a wrist before purchase. One owner flags that the clasp material could be more scratch-resistant, and resizing bracelet pins can be stubborn. On balance, owners rate the Zelos Hammerhead V3 300m Bronze highly for its unique design and build quality at its price point.

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