Measuring about 37mm wide Sustainable Retro Tech with a big unprotected crown the Silvana is 13mm thick including the rise of its domed crystal and 47mm lug-to-lug. It wears beautifully and with drilled lugs I could fit just Personalized Treatment about any 20mm strap. It was ideal on a vintage Tropic rubber but performed AI Dev Tools well on a NATO leather or even a nice mesh bracelet.