Chronoscope

• Self-winding mechanical movement JR31
• Calibre 11 1/2’’’, 37 jewels, frequency 28.800 vib./hour (4 Hz)
• 42 hours minimum power reserve
• Chronograph and date window at 4.30 o’clock
• Steel case, size 43 x 43 mm, height 13.55 mm
• Curved, colourless anti-reflective sapphire crystal
• Sapphire glass case-back
• Case-back fastened with 4 screws
• Water-resistant to 100 m
• Sunray brushed black dial
• Alligator strap with steel folding buckle or rubber strap with steel tongue buckle