Side by side

Hamilton Jazzmaster Maestro Auto ChronovsZelos Hammerhead V3 300m Bronze

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

Jazzmaster Maestro Auto Chrono
HamiltonJazzmaster Maestro Auto Chrono
MSRP $2,275
Hammerhead V3 300m Bronze
ZelosHammerhead V3 300m Bronze
MSRP $449
What people say

Owners + reviewers, side by side

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

Hamilton Jazzmaster Maestro Auto Chrono

Owners widely praise the Hamilton Jazzmaster Maestro Auto Chrono for its dramatic quality and attention to detail, with its versatile design suitable for dressing up or down. Timekeeping is generally good, with one owner reporting gains of no more than 5 seconds per day, and another noting their 7750-based movement has kept time within 10 seconds per day even after 15 years without service. Some owners find the lack of a second hand a dealbreaker, and the 45mm size may not fit comfortably under sleeves. Concerns exist regarding potentially high maintenance costs and intervals. Overall, owners rate the Hamilton Jazzmaster Maestro Auto Chrono highly for its bulletproof build and classic, dressy appearance at an accessible price point.

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.

At a glance

11 of 29 specs differ
Diameter
Jazzmaster Maestro Auto Chrono41mm
Hammerhead V3 300m Bronze44mm
Power Reserve
Jazzmaster Maestro Auto Chrono60h
Hammerhead V3 300m Bronze40h
Water Resistance
Jazzmaster Maestro Auto Chrono100m
Hammerhead V3 300m Bronze300m
MSRP
Jazzmaster Maestro Auto Chrono$2,275
Hammerhead V3 300m Bronze$449

Full specifications

Case

6 specs
Category
Chronograph
Diver
Diameter
41mm
44mm
Thickness
15.1mm
13mm
Lug-to-Lug
46mm
44mm
Material
Stainless Steel
Titanium
Water Resistance
100m
300m

Crystal & Dial

2 specs
Crystal
Sapphire
Domed Sapphire
Dial Color
Silver
Bronze - Frost

Movement

2 specs
Caliber
H-21
Seiko NH35
Power Reserve
60h
40h

Pricing

1 specs
MSRP
$2,275
$449
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