Seiko 6138-0040 Bullhead Chronograph Brown Dial Fully Serviced by ClockSavant - ClockSavant
Seiko 6138-0040 Bullhead Chronograph Brown Dial Fully Serviced by ClockSavant - ClockSavant
Seiko 6138-0040 Bullhead Chronograph Brown Dial Fully Serviced by ClockSavant - ClockSavant
Seiko 6138-0040 Bullhead Chronograph Brown Dial Fully Serviced by ClockSavant - ClockSavant
Seiko 6138-0040 Bullhead Chronograph Brown Dial Fully Serviced by ClockSavant - ClockSavant
Seiko 6138-0040 Bullhead Chronograph Brown Dial Fully Serviced by ClockSavant - ClockSavant
Seiko 6138-0040 Bullhead Chronograph Brown Dial Fully Serviced by ClockSavant - ClockSavant
Seiko 6138-0040 Bullhead Chronograph Brown Dial Fully Serviced by ClockSavant - ClockSavant
Seiko 6138-0040 Bullhead Chronograph Brown Dial Fully Serviced by ClockSavant - ClockSavant
Seiko 6138-0040 Bullhead Chronograph Brown Dial Fully Serviced by ClockSavant - ClockSavant
Seiko 6138-0040 Bullhead Chronograph Brown Dial Fully Serviced by ClockSavant - ClockSavant
Seiko 6138-0040 Bullhead Chronograph Brown Dial Fully Serviced by ClockSavant - ClockSavant
Seiko 6138-0040 Bullhead Chronograph Brown Dial Fully Serviced by ClockSavant - ClockSavant

Seiko 6138-0040 Bullhead Chronograph Brown Dial Fully Serviced by ClockSavant

Regular price $1,695.00 $1,395.00 Sale

Contact us today via email (contact_inquiry@clocksavant.com) or call us at +1 (703) 457-6820 to purchase this watch or learn more. We are happy to answer any questions.

Summary

This beautiful watch features its original case, pristine original dial, original hands, original bracelet, a new matching high quality crystal, and new seals. It was Fully Serviced by ClockSavant. Included is its original Seiko fishbone bracelet as well as a new high quality EastTech Swedefreak reissue bracelet (installed on watch) that we consider higher quality than the original. While you should avoid exposing vintage watches to any water, this watch passed a 3 bar Witschi Proofmaster water resistance check and therefore will resist light rain and water splashes (not swimming.)

Details

Brand

Seiko

Type

Chronograph, Automatic wind, Date, Day

Calibre

Seiko 6138

Jewels

21

Case

Steel

Size

43.5 without crown (width) and 46mm length

Strap

Includes its original Seiko branded bracelet. The bracelet has a size extender installed and can be adjusted larger or smaller at the clasp. With its extender installed, it will fit a large wrist up to 7.5 inches and possible a little larger. A new reissue bracelet is provided and installed on the watch in the pictures (see description.) This bracelet will fit the largest of wrists, beyond 7.5 inches.

Age

The watch was manufactured in approximately 1975

Service History

Fully Serviced by ClockSavant Fully disassembled, old and worn parts replaced or repaired, adjusted, optimized, cleaned, and lubricated. Comprehensive testing and performance measurement.

Condition

See the pictures. The original dial is in pristine condition. The case shows the typical dings and scratches for a watch from the 1970's. The original bracelet likewise shows normal wear. The reissue bracelet is new.

Returns

14-day inspection period provided that watch is returned in condition received.

Warranty

Fully Serviced by ClockSavant watches carry a 6 month warranty-- customer misuse, neglect, accidental, intentional, or unintentional damage are excluded from the warranty. See the Support page of our website for detailed warranty terms and conditions. For non-warranty damage, please contact us to obtain an estimate for servicing, repair, and restoration services.

Care and Use

All mechanical watches, and especially vintage watches, require special consideration in handling, care, and use. In order to obtain warranty support or to return an item, it is necessary that the customer did not cause damage to the watch. See the Support page to learn more about how to protect and care for your investment.

Unique Operation
Sales tax

Virginia residents will pay sales tax

ClockSavant Watchmaker Testing, Certification, and Performance Measurement

All the watches we sell go through a comprehensive series of ClockSavant-developed functional, stability, and performance tests and are only approved for sale if they meet or exceed the criteria we have established. Performance measurements for this watch are provided below. See the Support page of our website for an explanation of watch performance measurements and guidance on interpretation. The watch performance values provided do not necessarily reflect the accuracy you will experience based on your unique watch wearing habits. You may experience a gain or loss by as much as approximately 1 minute per day with vintage watches. Legend: Rate, Amplitude (Amp), and Beat Error (BE) are provided for Dial-Up (CH) and Dial-Down (FH) positions. Averages (Avg) are also provided. These represent the average performance of the watch across all 6 traditionally measured watch positions which, in addition to dial-up and dial-down, are the vertical positions of Crown-Up, Crown-Down, Crown-Left, and Crown-Right. Rate is expressed in seconds gained or lost during a 24 hour period. Amplitude is in degrees. Beat Error is in milliseconds. Lift Angle used in measurement is unique to the particular watch calibre.

Lift Angle

54.5

CH Rate

4

CH BE

0.2

CH Amp

223

FH Rate

2

FH Amp

218

FH BE

0.1

Avg Rate

-2

Avg Amp

211

Avg BE

0.23

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