Approximately 3.5cm wide. This is a Seiko Tomony mechanical men's watch for sale. From my father's watch collection, this is a classic design antique hand-wound watch that suits any occasion ☺︎ There may be some minor scratches from use and storage, but as you can see in the images, it is in very good condition (perhaps even deadstock??). Please examine the images carefully. The band is a valuable Tomony genuine stainless steel band, approximately 17cm. As this is a very old hand-wound watch, I cannot guarantee its future operation, but it is running without major errors. It also doesn't stop immediately (I haven't had it serviced, so if you are concerned about long-term use, I recommend an overhaul). By the way, the quick change function via the crown operation is also working fine. There are no accessories. I am very sorry, but please absolutely do not purchase this item if you are not accustomed to used items, are overly sensitive, do not understand the above explanation, or are feeling anxious. Mercari is a place for private sales. This is a used item in its current condition, and it is a layman's inspection (100% perfection is absolutely impossible). Thank you for your understanding. A popular model of antique watches ☺︎ This is a Seiko Tomony mechanical (hand-wound) men's watch. Please make it a proud treasure... ※※ I will ignore and delete discount negotiations and unreasonable price negotiations that do not include a price offer, as well as standard Mercari messages. Also, please refrain from unnecessary "likes" (they are a factor in withdrawal). #Seiko #SEIKO #SeikoSchoolTime #SEIKOSCHOOLTIME #SCHOOLTIME #SeikoHandWoundWatch #HandWoundWatch #MechanicalWatch #SeikoTomony #Tomony #SeikoTomonyHandWound #SEIKOTOMONY #SeikoMechanical Movement: Hand-wound (mechanical) Belt Color: Silver Accessories: None