23 :: Seiko 'Slide Rule Calculator' chronograph automatic stainless steel gentleman's wristwatch, reference no. 6138-7000, circular black dial with applied baton markers, minute markers, day/date apertures, subsidiary thirty minute and hour recording dials and chronograph centre seconds, black slide rule bezel, Seiko bracelet with folding clasp, 44mm
Seiko 'Slide Rule Calculator' chronograph automatic stainless steel gentleman's wristwatch, reference no. 6138-7000, circular black dial with applied baton markers, minute markers, day/date apertures, subsidiary thirty minute and hour recording dials and chronograph centre seconds, black slide rule bezel, Seiko bracelet with folding clasp, 44mm
Estimate: £450-550
Preview available soon.