For A.p. -- Seiko 6138-0040 Black Bullhead Service

For A.P. -- Seiko 6138-0040 Black Bullhead Service

Blair Watch Project

For A.P. -- Seiko 6138-0040 "Bullhead" Evaluation

Blair Watch Project

For J.S. -- Seiko 6138-0040 JDM Bullhead Service

Blair Watch Project

Overhauling A Seiko Bullhead - Full Rebuild - 6138-0040

Weekend Watch Repair

For P.A. -- Seiko 6138-0040 Black Bullhead Evaluation

Blair Watch Project

For A.B. -- Seiko 6138-0040 Black Bullhead Evaluation

Blair Watch Project

For D.C. -- Seiko 6138-0040 JDM "Bull Head" Evaluation

Blair Watch Project

For A.B.-- Seiko 6138-0040 Bullhead Service and Restoration

Blair Watch Project

For R.V. -- Seiko 6138-0040 JDM Bullhead Service

Blair Watch Project

For D.T. -- Seiko 6138-0040 Brown Bullhead Service and Restoration

Blair Watch Project

For P.A. -- Seiko 6138-0040 Bullhead Service and Restoration

Blair Watch Project

For D.C. -- Seiko 6138-0040 JDM Bullhead Service

Blair Watch Project

For L.W. -- 6138-0040 Rebuild

Blair Watch Project

Reassembly of a Vintage Seiko 6138-0040 Bullhead - Part 1

OnlyVintageWatches.com - George Clarkson

A Time When Seiko Made Amazing Watches - Seiko 6138 0040 Bullhead

Beautiful Seiko Bullhead Automatic Chronograph ref. 6138-0040 in excellent condition.

Classiche e Youngtimer

For Tod S: Seiko 6138-0040 black bullhead in progress

For CO: Seiko 6138-0040 Brown Bullhead restoration. August 14, 2024

6138-0040 Bullhead Repair Pt. 3

Hub City Vintage