Hamilton American Classic Intra-Matic Chronograph - 40mm

Name: Hamilton American Classic Intra-Matic Chronograph - 40mm
Brand: Hamilton
SKU: sm7yvdcrhf
Availability: InStock

The Hamilton American Classic Intra-Matic Chronograph H is inspired by the 1968 Hamilton Chronogra...

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American Classic Intra-Matic Chronograph 40mm Mens Watch

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Product Information

Full details

The Hamilton American Classic Intra-Matic Chronograph is designed for watch enthusiasts who value mid-century horological aesthetics combined with modern mechanical reliability. Inspired by the 1968 Chronograph A, this 40mm timepiece delivers a stunning vintage "panda" dial look and high-performance chronograph functionality; however, potential owners should be prepared for the manual winding routine required by its H-51 movement, which may not suit those who prefer automatic self-winding watches.

All features

Dial Size	40mm
Series	American Classic Intra-Matic
Model Part Number	H38429710
Brand	Hamilton

Extended Product Information

FAQs

Is this watch an automatic?

No, the Hamilton American Classic Intra-Matic Chronograph uses the hand-wound H-51 caliber, meaning it requires manual winding.

How long is the power reserve?

The watch features an extended 60-hour power reserve when fully wound.

Can I wear this watch while swimming?

With 100 meters of water resistance, it is suitable for swimming and water sports, but avoid pressing the chronograph pushers while submerged.

What is the lug width for strap changes?

The lug width for this 40mm model is 20mm, making it compatible with many aftermarket straps.

Does the watch have a date window?

No, this model features a clean, no-date dial design to maintain its vintage aesthetic.

Troubleshooting

Watch stopped ticking unexpectedly

The H-51 is a manual-wind movement. Rotate the crown clockwise until fully wound to restore power.

Chronograph hands do not reset to zero

Ensure the chronograph is fully stopped using the top pusher before pressing the bottom reset pusher.

Pros and Cons

Pros

Iconic 1960s-inspired vintage aesthetic
Extended 60-hour power reserve
Excellent scratch resistance with sapphire crystal
Versatile 40mm sizing
High-quality crocodile-pattern leather strap

Cons

Requires manual daily or periodic winding
No date complication might inconvenience some users
Leather strap may require a break-in period

Setup, Compatibility & Care

To operate the H-51 movement, wind the crown clockwise in its base position until you feel slight resistance; do not overwind. To start or stop the chronograph, press the top pusher; the bottom pusher resets the sub-dial hands.

Care Instructions:

Wipe the case regularly with a soft, lint-free cloth to remove sweat and oils.
Avoid exposing the leather strap to excessive moisture or prolonged direct sunlight to prevent cracking.
Have the watch pressure-tested by an authorized service center every two years if it is frequently exposed to water.
Keep the watch away from strong magnetic fields (like speakers or large electronic motors) to maintain timing accuracy.