weeeeeee
Nice, my Tutima says hello. The Field Chrono is fitted with a quartz movement but it is like the 5100 in that it has a centrally mounted chrono minute hand. It is interesting to note that the font on the 'TUTIMA' legend on your dial is different from mine as is the 'CHRONOGRAPH' at the 3 o'clock position.
And my Revue Thommen (smallest 5100 powered watch with countdown bezel).