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1976 Seiko "BullHead" SpeedTimer 6138-0040

1976 Seiko "BullHead" SpeedTimer 6138-0040

Regular price ¥170,000 JPY
Regular price Sale price ¥170,000 JPY
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 Serviced, 1976 JDM Seiko 5 Sports SpeedTimer "BullHead", 23 jewels automatic chronograph with manual winding in nice condition. 

Original dial and hands are in great condition. 

Case is polished. 

Bezel insert has faded a bit, probably due to excessive sun exposure. 

New aftermarket fishbone (like the original) stainless steel bracelet with genuine Seiko clasp. Sized to 17.5cm with two extra links. 

New crystal and all new gaskets. 

Movement has been serviced and it runs strong with good accuracy. All buttons and crown operations work as they should. Unlike 6139, caliber 6138 has manual winding and minute and hour recorder hands. Weekdays are in English and Kanji. 

SKU# S1969
Model 6138-0040
Movement automatic chronograph with manual winding 
Caliber 6138B 
Jewels 23
Case Stainless steel 
Case size 44mm x 46mm 
Lugs
Dial Brown 
Crystal hardlex new 
Bracelet new aftermarket fish bone stainless steel bracelet with genuine Seiko clasp 
Serial # 632880
Service Nov 19, 2025
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