●Model number: SBSA245●Caliber No: 4R36●Material: Stainless steel●Belt: Genuine SS belt, 3-fold buckle●Movement type: Automatic (24 jewels, with manual winding, hack function)●Water resistance: 10 ATM water resistance●Function: Day-date calendar (day of the week display: Japanese/English)●Specifications: Anti-reverse bezel/see-through back●Dial: Black●Case size: 42mm (excluding crown)●Belt size: Arm circumference (inner diameter) 18.5cm (with 2 spare links)/Lug width: 22mmAccessories: Box, case, instruction manual, warranty card (purchased in April 2025, warranty period 3 years)The belt has been adjusted after purchase, but has only been tried on and barely used.It is in beautiful condition, almost unused, but there is a small stain on the 5 o'clock side of the dial that is thought to have been attached during the manufacturing process.Please be aware of this.Daily difference +4 to 5 seconds (measured flat using a timegrapher)★Daily difference may be larger depending on the usage environment, posture, etc. Please consider these figures as a reference only.