Inspired by the skies for over 70 years, Swiss watchmaker Oris has been producing professional aviator timepieces since the launch of the first Oris Big Crown in 1938. Born to meet the needs of fighter pilots in Normandy, this heroic instrument has since spawned a whole generation of watches connected to the skies.

Oris Big Crown ProPilot Big Day Date

• Case Material: Stainless steel, multi-piece
• Measures 44.00 mm, 1.732 inches
• Sapphire crystal , curved on both sides, anti-reflective treatment on the inside
• Case back Stainless steel, screwed, mineral glass porthole
• Crowns and pushers Stainless steel crown, screw-down
• Water resistance 10 bar
• 22 mm lugs

• Oris reference 752, base SW 220-1
• Dimensions Ø 32.20 mm, 14 1/4'''
• Functions: Central hands for hours, minutes and seconds, large date and day of the week, instantaneous date and day, date and day corrector, fine timing and stop seconds
• Winding Bidirectional automatic winding, red rotor
• Power reserve 38 hours
• Alternations 28,800 A/h, 4 Hz
• Rubies 26

• Dial Material: Grey
• Luminescent materials Numbers and hands in Superluminova BG W9 Grade A

• Material Stainless steel bracelet, deployment clasp