Hamilton
Intra-Matic H38755731— lug 20mm
Hamilton Intra-Matic H38755731: 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 H38755731The essential strap measurement.
Browse 20mm straps →H38755731
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 H38755731?
The lug width (the bridge connecting the case to the strap) measures exactly 20mm. This dimension is specific to the Intra-Matic model and ensures correct visual proportions relative to the 42mm case diameter. To verify strap compatibility, simply measure the space between the lugs with a digital caliper.
What is the best aftermarket strap for the Intra-Matic H38755731?
The choice depends on intended use. For formal-sport contexts: dark brown alligator leather or black calf with satin steel deployant clasp. For everyday versatility: black FKM rubber (Viton) with brushed steel keeper. For authentic vintage aesthetics: Tan or Olive NATO canvas with burnished steel keepers. All these materials enhance the Panda dial while creating different visual dynamics.
How do I change the strap on my Hamilton Intra-Matic?
Strap replacement is done through the spring bars (the spaces between the lugs). Using a spring bar tool sized for 20mm lugs, insert the flat lever into the side hole of the keeper, apply gentle inward pressure to release the tension spring, then extract the pin. Repeat on the other side. Reverse the procedure to install the new strap. If you are not experienced, consult an expert: the Atelier Casati Milano offers bespoke consultation services.
Are there aftermarket straps compatible with this model?
Yes, any strap with 20mm lug width is compatible with the Intra-Matic H38755731. In the Milano Straps catalog you will find a selection of vegetable-tanned leathers, military NATO straps, sportive rubber solutions and deployant clasps, all verified for mechanical compatibility and aesthetic proportion with this reference.
How long does a leather strap last on a sport chronograph like the Intra-Matic?
The durability of a natural leather strap depends on frequency of use, ambient humidity, and maintenance. Quality vegetable-tanned leather (alligator, calf), worn daily with care, maintains structural integrity between 3 and 5 years. FKM rubber (Viton) offers superior longevity (7-10 years) thanks to oxidation resistance. NATO canvas lasts beyond 10 years if not exposed to prolonged humidity. Annual inspection of the deployant clasp and keepers is recommended.