Romain Jerome Caliber RJ004-M Watch Movement

Brand	Romain Jerome
Caliber Number	RJ004-M
Movement Type	Mechanical, manual wind
Jewels	21
Power Reserve	48 hours
Vibrations Per Hour	28,800 bph
Hacking?	(please add to comments below)
Features	Central hours and minutes, small seconds at 9:00
Country of Manufacture	Switzerland
Known Models	RJ-Romain Jerome Skylab

This Romain Jerome caliber RJ004-M was found in a PVD “Speed” version of the Skylab reference RJ.M.AU.025.01. Photo taken at Baselworld. Also found in Skylab Heavy Metal (RJ.M.AU.023.01) and Skylab Red (RJ.M.AU.028.01).