With the Jazzmaster Thinline Automatic, you can create a Hamilton timepiece tailored to suit your style. There are four different dial and strap color combinations to choose from. A click replacement spring bar allows you to easily swap bracelets. REFERENCE H38525541 STRAP REF. H600.385.109 STRAP MATERIAL Brown Leather CALIBER 2892-A2 Automatic 40 mm 8.45 mm Stainless Steel 20 mm