This is the Seiko EL-370 Hybrid, the creation & restoration of which I documented in this video:

https://youtu.be/GhA5DeNZaT0

To Recap: This watch is a hybrid of two different EL-370s - a gold-plated 3703-7039 from September 1971 (dial, hands, movement, movement ring, caseback) and a stainless steel case & bracelet, date unknown as the caseback was missing.

I found these watches to illustrate my answer to a question for our Friday Fun / Q&A video series, and over the course of the following weekend, restored the watch as it is now.

• Fully serviced movement, adjusted & dialed in

• Entire movement fully disassembled, fully cleaned and rebuilt correctly, with the proper lubricants.

• Case rebuilt with all new seals, including battery hatch.

• NOS crystal installed.

• Bracelet is original to the case, I have extended the bracelet with closely related links from another Seiko watch, model unknown.

I was able to get excellent numbers out of this movement, and dial it in to accuracies of a few seconds per day so far. Very nice piece.

The majority of the pricing is for the labor and parts that went into servicing this watch.