Seiko Speedtimer "Bullhead" Chronograph 6138-0040 Vintage Watch
There are 2 variants of vintage Seiko Bullheads: black dial with steely blue sub-registers, and this one: reddish brown dial with gold sub-registers.
Brown Speedtimer bullheads further come in two variants. The rare Bullhead produced only for within Japan and surrounding markets have "Speedtimer" written on its dial. This watch is the Speedtimer variant. The other brown Bullhead variant are distributed to the rest of the world, and are marked with the standard "Chronograph Automatic".
Brown Bullhead Speedtimers come with oyster-style bracelet, and they are asymmetrical from end to end. This means that the bracelet is wider where it attaches to the top of the case than where it attaches to the bottom of the case. If the Bullhead Speedtimer's bracelet is symmetrical then it is not original.
- Ref: 6138-0040
- Year: 1970-1979
- Dial: Red-brown dial with gold sub-registers
- Movement: Automatic
- Case: Seiko stainless steel
- Case serial: 723627
- Case diameter: 44mm (excludes crown)
- Lug to lug: 42mm
- Case thickness: 15mm
- Band: Seiko stainless steel bracelet code Z040S, fitting up to 17cm
- Box & papers: Not available
- Warranty: 12 months in-house warranty
- SKU: +136/i