1931 Retrograde : a choreography by Louis Erard

Movement:  automatic mechanical, ETA 2892/9094 Soprod
Functions:  hours, minutes, seconds, day; retrograde date and power reserve
Case: stainless steel, 44 mm anti-reflective sapphire crystal transparent back
water-resistant to 50 metres  
Dial: silvered (01) or black (02) with silvered indexes hours, minutes, seconds at centre day counter at 9 o’clock, retrograde date at 3 o’clock, retrograde power reserve at 6 o’clock
Strap: brown, black or chocolate genuine leather with stainless steel folding clasp