Caliber 481. 35mm. From 1940s.
Extremelly colourful timepiece with Roman style rose gold index II, IIII (strange not IV ! supposedly to balance the dial), VIII & X matching the case. Blue outer track.
Gold leaf hands for hours & minutes. Blue hands for chrono sub registers and red hand for moon phase.
At the time there were – especially with Universal Geneve – a large amount of dial combination/variant for a given case. The rose gold case / roman index applied / « leaf » hands = ref. 12264.
Upmost elegance watch.