But you need to know;
1.) have they been made by Seiko, just not branded with 'Seiko' but branded 'Honda' for the internal use of the F1 Team?
or
2.) if 1 is true - are they genuine or fake?
Re 2, well.. given how old and uncommon those watches are I think it will be very hard to find black or white answer. I see no red flags, everything looks crisp and those are genuine imo.
Re 1, I think they are Seiko made.
Here:
View attachment 1178472
This number is case (reference) number. Tri-segmential number, just like Seiko numbers their cases.
In Seiko those segments say:
A is a movement cased in,
B says the overall shape, style of the case, sometimes colour variation too,
C says how glass is installed.
Yet, I have not seen any other manufacturer who uses a similar segments for case reference numbers.
For me everything sums up into - "Seiko watch but branded Honda".
Click to expand...