Ref 2446 SF
Dial: Dark grey dial. Applied indices with original lume to ends. Three sub-dials. Hands with original lume.
Case: 40mm. Stainless steel compressor snap-back case. Heuer crown. Original ridged pushers. Pusher on left for tidal indicator. Hours and minutes bezel.
Movement: Heuer signed Valjoux 721 manual movement. All chronograph functions working correctly.
Condition/Notes: Extraordinarily rare – one of only 15 known examples. Compressor case retains its sharp edges and shows little sign of having ever been polished. All entirely original. Heavy patina to dial.