The Guinand Flying Officer 24 is by far one the most 'interesting' chronos that I own (I have 5 in total).
37.5mm case, manual winding chrono (in house modified Valjoux 7760) with 24 hour...
Type: Posts; User: radarcontact
The Guinand Flying Officer 24 is by far one the most 'interesting' chronos that I own (I have 5 in total).
37.5mm case, manual winding chrono (in house modified Valjoux 7760) with 24 hour...