This is the 44 mm B-Type / Beobachtungsuhr style dial with the classic outer minute track and inner hour ring. Stainless steel case, sapphire crystal, and original pilot-style crown. Comes with box and paperwork shown in the photos. Details: Brand: Steinhart Model: Nav B-Uhr 44 Automatic B-Type Reference: believed to be F0313 Movement: ETA 2824-2 automatic Case size: 44 mm Crystal: Sapphire Case material: Stainless steel Dial: Black B-Type pilot dial Strap width: 22 mm Water resistance: 3 ATM Swiss Made Condition: Very clean overall condition. Please review all photos carefully for exact cosmetic condition, strap condition, and everything included. Watch is running and presenting well. Included: Watch Steinhart box Warranty / booklet papers shown in photos Notes: Listing is based on the watch, movement, and paperwork shown. Please review photos carefully and ask any questions before purchase.