Approximately 3.8cm wide. This is a really cool watch! This is a Citizen OXY Space Jack Chronograph men's watch for sale ☺︎ There may be minor scratches from use and storage, but as you can see, it's in great condition (or rather, it hardly looks used at all...). Please take a close look at the images. The band is the original genuine stainless steel band, and the wrist size is about 18.5cm. I cannot guarantee future operation, but I recently replaced the battery with a new one and it is working without any problems (battery replacement only). Of course, the chronograph also works without any problems. ※One point of caution... For some reason, the date change function is not working. Please purchase if you don't mind or if you want to fix it. It's a beautiful item, but there is a point to note. Please purchase if you understand. If you are not used to used items, are overly sensitive, do not understand the above explanation, or are anxious, or if you cannot understand Japanese, please absolutely, absolutely, absolutely do not purchase. Mercari is a place for private sales. It is a used item in its current condition, and it is a layman's inspection (there is no 100% perfection), so please understand. There are no accessories... It's a slightly rare and cool watch! Citizen OXY Space Jack Chronograph Quartz Men's Watch!! Please make it a proud item... ※※I will ignore and delete consultations using Mercari's standard phrases without price offers and price negotiations that lack common sense. Also, please refrain from "likes" if you are not going to buy, as it will lead to the removal of the listing... #Seiko #SEIKO #SeikoDiver #SeikoDivers #SeikoSQ #SEIKOSQ #SeikoSQDiver #DiverWatch #ImportedWatch #DiversWatch #SeikoProspex #SeikoProfessional #SeikoLadiesDiver #SeikoDiver150m #SEIKODiver #SeikoScuba200m #SeikoScuba #SeikoSolar #SolarWatch #SEIKOSCUBA200m #SEIKOSCUBA #PROFESSIONAL #SEIKOPROFESSIONAL #SeikoChronograph #SEIKOchronograph #CITIZENOXY #CitizenOXYChronograph #CitizenChronograph #CitizenSpaceJack