Superb model, 'Mortima' Mayerling 17 jewels (NOS - new old stock) from the 1970s. Gold plated case of 36.6 mm diameter (jumbo) without the crown and stainless-steel antimagnetic screw back. Gold-plated dial. Inscription signed Mortima at 12 o'clock. Inscription Mayerling 17 jewels at 6 o'clock Overlaid gold-plated baton markers, gold-plated hands and gold-plated central second hand Lilipop. Day indicator's magnifying glass is place overlaid the 3 hours symbol and has a chrome-plated edge. Crystal without a satin and with magnifying glass over the day indicator's crystal. Brown leather strap UNC of 19 cm buckle excluded. 17-jewel hand wind movement, in perfect working condition and keeping accurate time. Careful registered shipping with signature required upon delivery. Happy bidding everyone.