Omega - Speedmaster 57 Omega Co-Axial Chronograph 41.5 mm - Steel And Yellow Gold Watch 331.20.42.51.02.001 Ultra-Thin - Mechanical - 38 mm - Rose Gold interchangeable full and sapphire-crystal back

interchangeable full and sapphire-crystal back

very well-tolerated almond oil and valuable sunflower oil can provide intensive lipid replenishment

black transferred hour markers on front dial dial with black velvety Clous de Paris guilloche back dial

caliber 809/1 automatic movement with minutes

38mm 18K rose gold case

Omega - Speedmaster 57 Omega Co-Axial Chronograph 41.5 mm - Steel And Yellow Gold Watch 331.20.42.51.02.001 Ultra-Thin - Mechanical - 38 mm - Rose Gold interchangeable full and sapphire-crystal back41. 5 mm stainless steel and yellow gold case, transparent back, 18K yellow gold bezel with tachymeter scale, scratch resistant sapphire crystal with anti reflective treatment on both sides, silver dial with a seconds sub dial at 9 oclock and a 12 hour and 60 minute chronograph recorder on the sub dial at 3 oclock, calibre 9300 self winding movement with a central chronograph seconds hand and a date window at 6 oclock, approximately 60 hours of power