Glashutte Original 10005130204, 100-05-13-02-04, Senator Calendar Week, Stainless Steel on a Custom Strap with a Stainless Steel Deployant Buckle, Automatic, Week Number of the Year at 12 O'clock, Day Indicator Between 7 and 8, Date at 4 O'clock, Centered Sweep Seconds Hand, Diameter: 40.1 mm, Thickness: 13mm, Display Back, Sapphire Crystal, Water Resistant to 5 atm, Power Reserve of 55 Hours, Excellent condition but watch only.