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How to Buy a Seiko Bullhead

Bullhead Case

Seiko 6138-0040Seiko 6138-0040

The case should be polished with Mirror & Matt Finishing in the position as same as the picture.
Especially, It should have be sharp edge finishing.



Seiko 6138-0040

The button and the pusher should look as same as the picture.




Seiko Bullhead 6138-0040Seiko Bullhead 6138-0049

The case back should be stamp with a reference number "6138-0040" or "6138-0049".
Only Seiko Brown bullhead dial version "Seiko Chronograph Automatic" that has a case back reference number "6138-0049".


Bullhead Dial version

Seiko 6138-0040Seiko 6138-0040Seiko 6138-0040

Seiko Brown Bullhead has 3 dial version:
1. Seiko Chronograph Automatic
2. Seiko Speed-Timer
3. Seiko 5 Sports Speed-Timer



Seiko 6138-0040

Seiko Black Bullhead has only 1 dial version:
1. Seiko Chronograph Automatic


Dial Reference Version

Seiko 6138-0040

Seiko Brown Bull head dial version "Seiko Chronograph Automatic" should come with a dial reference number "6138-0060T" and English/Spanish Day Wheel.



Seiko 6138-0040

Seiko Brown Bull head dial version "Seiko Speed-Timer" should come with a dial reference number "6138-0071T" and English/Kaji Day Wheel.



Seiko 6138-0040

Seiko Brown Bull head dial version "Seiko 5Sports Speed-Timer" should come with a dial reference number "6138-0070T" and English/Kaji Day Wheel.



Seiko 6138-0040Seiko 6138-0040

Seiko Black Bull head dial version "Seiko Chronograph Automatic" should come with a dial reference number "6138-0060T" and English/Kaji, English/Arabic, English/Spanish Day Wheel.


Seiko bullhead hand

Seiko Bullhead
Seiko Bullhead

Hour/Minute hands
Seiko Bullhead has 2 hour hand version:

1. Hour/Minute hands with luminous material.
It should be found in Seiko Black and Brown bullhead dial version "Seiko Chronograph Automatic"

2.
Hour/Minute hands without luminous material.
It should be found in Seiko Brown bullhead dial version "Seiko Speed-Timer" and "Seiko 5Sports Speed-Timer"




Seiko Bullhead
Seiko Bullhead

Hour/Minute Chronograph hands
Seiko Bullhead has 2 hour hand version:

1. Hour/Minute Chronograph hands in Black
It should be found in all dial version of Seiko Brown bullhead

2. Hour/Minute Chronograph hands in White
It should be found in Seiko Black bullhead



Seiko 6138-0040
Seiko 6138-0040

Sweep second chronograph hands
Seiko Bullhead has 2 version of Sweep second chronograph hand:

1.
Sweep second chronograph hand in Yellow.
It should be found in Seiko Black and Brown bullhead dial version "Seiko Chronograph Automatic"

2.
Sweep second chronograph hand in Red.
It should be found in Seiko Brown bullhead dial version "Seiko Speed-Timer" and "Seiko 5Sports Speed-Timer"


Seiko Bullhead Bezel

Seiko 6138-0040Seiko 6138-0040Seiko 6138-0040

Seiko Bullhead has 3 Bezel version:

1. Brown color, "TACHYMETER" in Gold, Number in Silver, and Indexes in Gold.
It should be found in Seiko Brown bullhead dial version "Seiko Chronograph Automatic" and "Seiko 5Sports Speed-Timer".

2. Brown color, "TACHYMETER" in Silver, Number in Silver, and Indexes in Silver.
It should be found in Seiko Brown bullhead dial version "Seiko Speed-Timer".


3. Black color, "TACHYMETER" in Silver, Number in Silver, and Indexes in Silver.
It should be found in Seiko Black bullhead dial version "Seiko Chronograph Automatic".