Hamilton
Intra-Matic H38455151— lug 20mm
Hamilton Intra-Matic H38455151: 20mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.
Artisanal Note
"This model requires a precise 20mm lug width to preserve the original sartorial balance."
Technical Specifications
Hamilton H38455151The essential strap measurement.
Browse 20mm straps →H38455151
ETA caliber 2892-A2 Hours, Minutes, Seconds | Date
The Heritage
Compatible Straps
Selected for the 20mm lug width of the Intra-Matic
FAQ
What is the lug width of the Hamilton Intra-Matic H38455151?
The Hamilton Intra-Matic H38455151 has a lug width of 20mm. This standard vintage sports watchmaking measurement is taken internally at the lug seat—the distance between the two inner edges where the strap inserts into the spring bars. An incorrectly sized strap creates lateral play and compromises both the aesthetics and durability of the piece.
What is the best strap for the Hamilton Intra-Matic H38455151?
There is no single 'best' option, but rather informed choices: cognac brown alligator enhances formal-sports elegance, black aniline calf ensures understated daily practicality, navy or green NATO reinforces aviator character, and black rubber offers maximum functionality. Your choice depends on the intended occasion and the aesthetic patina you wish to develop over time.
How do I change the strap on my Hamilton Intra-Matic H38455151?
Strap changes require a spring bar tool or, for greater safety, professional assistance. Locate the spring bars that pass through the lug seat, apply lateral pressure with the tool to compress the internal spring, remove the bar, slide off the old strap, and insert the new one while verifying that both sides of the bar are secured. Incorrect technique risks damaging the case or losing the strap during wear.
Is there an aftermarket strap compatible with the H38455151?
Yes, any strap with a 20mm width is formally compatible. However, build quality varies considerably. Artisanal straps from specialized makers offer selected leather, hand-stitched seams, and finishing that respects the watch's value. Avoid generic or mass-produced straps, which will show visible defects within weeks.
How long does a leather strap last on an Intra-Matic H38455151?
Durability depends on material, daily use, and maintenance. Premium aniline calf resists 2-3 years with visible but functional wear. Alligator, due to its more robust structure, lasts 3-5 years. Cotton NATO can last 5+ years virtually unchanged. Leather requires occasional cleaning with a damp cloth and protection from prolonged water exposure; NATO is inert to moisture.