Alpina Startimer Pilot Big Date 44 mm with functions Hours, minutes, seconds, chronograph, big date; Al-372 caliber, quartz movement, 13 Jewels, 48 months battery life; Brushed and polished stainless steel rose gold-plated 2-part case; diameter of 44 mm, thickness of 12.94 mm, Convex sapphire crystal, Water-resistant up to 10 ATM & Engraved case-back; Navy blue dial with black counters, white graduation, Applied rose gold-plated indexes with white luminous treatment at 12, 3, 6, 9 o’clock, Applied rose gold-plated Arabic numbers filled with black luminous at 1, 4,5, 7, 8, 11 o’clock, Hand-polished rose gold-plated hour and minute hands filled with black luminous, Rose gold-plated chronograph second hand with red triangle, chronograph 10th of a second counter at 3 o’clock, small seconds counter at 6 o’clock, chronograph 30 minutes counter at 9 o’clock, all with hand-polished rose gold-plated hands, Big date window at 6 o’clock and Brown calf leather strap with off-white stitching. AL-372NB4S4