Up for sale this beautiful vintage Seiko Chronograph 6138-0040 aka Bullhead, circa 1974

Features the automatic calibre 6138

Measures about 44mm, 46mm lug to lug, 20mm lug width and 17mm thickness. For reference, my wrist measures about 17cm

The watch is working with all genuine parts

Case looks good with expected signs of use for its age. 

The watch is working, but I have no service history and it is running -23s/d - sold as is 

Chronograph is reseting to 0 as it should

Comes with the genuine bracelet with signed clasp that fits up to about 19cm wrist

Not tested for water resistance, We recommend avoiding getting vintage pieces wet

Please consider looking more the images on the post for more details