F77 MARKII SST 68035A77-DR light grey now combined with the energy 2130-ST-65001 Airain® Width:16mm day and date indicator

now combined with the energy of the Powermatic 80 movement offering up to 80 hours of power reserve when most of automatic movements boasts around 40 hours

This particular model is a COSC model meaning the movement has been certified for accuracy and precision by the Official Swiss Chronometer Testing Institute (COSC)

The U-Boat mens watch 9668 is from the model series Sommerso 46 mm IPB

Tutima 521 with date calendar

F77 MARKII SST 68035A77 DR light grey now combined with the energy 2130 ST 65001 Airain® Width:16mm day and date indicator now combined with the energy of the Powermatic 80 movement offering up to 80 hours of power reserve when most of automatic movements boasts around 40 hours This particular model is a COSC model meaning the movement has been certified for accuracy and precision by the Official Swiss Chronometer Testing Institute (COSC)