Hamilton H39415154 American Classic Valiant AutoProduct Overview The calm design, which remains stable whether it features a quartz or automatic movement, is essential to the signature style. The variant stylishly enhances any scene. Specifications Product Number H39415154 Caliber H 10 Collection American Classic Movement Automatic Case Size 34mm Thickness (mm) 10. 58 Dial Color Silver Case Material Stainless Steel Crystal Sapphire Crystal Lug Width Lug Width 16MM Power Reserve 80 Hours Status