Side by side

Hamilton American Classic RailRoad Auto ChronovsZelos Hammerhead (Tantalum LE)

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

American Classic RailRoad Auto Chrono
HamiltonAmerican Classic RailRoad Auto Chrono
MSRP $2,045
Hammerhead (Tantalum LE)
ZelosHammerhead (Tantalum LE)
MSRP $1,499

At a glance

10 of 29 specs differ
Diameter
American Classic RailRoad Auto Chrono44mm
Hammerhead (Tantalum LE)44mm
Power Reserve
American Classic RailRoad Auto Chrono60h
Hammerhead (Tantalum LE)40h
Water Resistance
American Classic RailRoad Auto Chrono50m
Hammerhead (Tantalum LE)300m
MSRP
American Classic RailRoad Auto Chrono$2,045
Hammerhead (Tantalum LE)$1,499

Full specifications

Case

5 specs
Category
Chronograph
Diver
Thickness
15.3mm
13mm
Lug-to-Lug
46mm
44mm
Material
Stainless Steel
Titanium
Water Resistance
50m
300m

Crystal & Dial

2 specs
Crystal
Sapphire
Domed Sapphire
Dial Color
Black
Tantalum LE

Movement

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

Pricing

1 specs
MSRP
$2,045
$1,499

Follow this matchup

Get a note when Hamilton American Classic RailRoad Auto Chrono vs Zelos Hammerhead (Tantalum LE) gets more votes, a community discussion, or a price drop. No account needed.

What people say

Owners + reviewers, side by side

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

Hamilton American Classic RailRoad Auto Chrono

Owners widely praise the Hamilton American Classic RailRoad Auto Chrono for its historical brand appeal and spectacular appearance, calling the ETA 7750 movement a "tank" and appreciating the date magnifier's integration. Some find its design a bit busy compared to other models. One owner notes an 80-hour power reserve from the H-10 movement and a 40mm case with turned-down lugs for a thinner appearance. Overall, owners rate the Hamilton American Classic RailRoad Auto Chrono highly for its historical brand appeal and robust movement at its price point.

Zelos Hammerhead (Tantalum LE)

The Zelos Hammerhead (Tantalum LE) features a forged carbon dial and bezel insert with infused lume. On balance, owners and reviewers rate the Zelos Hammerhead (Tantalum LE) highly for its unique material composition and substantial feel.

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.

Adjacent matchups

People also compared

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