Limited edition of 300 pieces sinn watch 103 st sa e limited edition 1030621 vintage tan leather sinn watches are renowned for their aviation inspired designs and this sinn 103 st sa e limited edition watch continues this tradition by bringing to life an aesthetic reminiscent of cockpit navigation clocks and their rapid and clear readability the polished stainless steel case hides the valjoux 7750 gmt self winding movement with 200 metre water resistance and ar dehumidifying techonology th