Presage Blue Enamel Crescent Sapphire Roman Multi Dial Watch SPB091J1

Seiko Automatic Cal. 6R27, 29 Jewels, Power reserve: 45 hours
Dual-Curved Anti-Reflective Sapphire Crystal
Magnetic resistance 4,800 A/m
Screw see-through case back
Accuracy: +25 to -15 seconds per day