Howard · 23 jewels · 16s · 1900s–1920s
For most of the Keystone years the Series 0 was the best watch Howard made, and only the presentation-grade Edward Howard sat above it. It's a 16-size, 23-jewel bridge-model movement marked Special Adjustment Five Positions Temperature, and Howard's mark for it on the center bridge is an arrow through a circle with a Maltese cross inside. Keystone built it in hunting and open-face versions, and either could be finished lever set or pendant set, so the same movement served railroad men and dress-watch buyers. The first 23-jewel Howards came from Waltham under contract, with serial numbers just over 1,000,000, and Keystone's own Series 0 numbers later overlapped them, which still confuses listings. Early movements carry no series mark at all, while later ones say No. 0 or Series 0. Howard's catalog numbers give it away too, since a two-digit catalog number always meant a 23-jewel Series 0 in the case named by those digits.
The grade
The Series 0 is the 23-jewel top of Keystone-Howard's 16-size line, above the 21-jewel Series 1, 10 and 11 and the 19-jewel Series 5. A 23-jewel Howard with an H-prefix serial number is an earlier Waltham-built watch. Confirm 23 Jewels with Series 0 or No. 0 and the Special Adjustment Five Positions Temperature marking on the movement.
Serial numbers overlap between Waltham-built and Keystone-built 23-jewel Howards, and serial charts date Keystone-Howards poorly, so sellers often give the wrong year. Many have lost their original Howard-signed case.
Buying guide
We'd buy the 1915 Series 0 titled 23 jewels and railroad grade at $1,025 delivered, just under the $1,125–2,025 most of the about 12 for sale ask delivered. Confirm 23 Jewels, Series 0 or No. 0 and Special Adjustment Five Positions Temperature on the plate, and look for the arrow through a circle with a Maltese cross on the center bridge. Four Japan hunter-case listings, most with $224–310 shipping, look like two watches each listed twice, and two open-face ones share one title at $900 and $1,517, so make sure you're looking at a separate watch with its own photos before you offer. Solid 14K gold explains the $5,700–5,800 asks, and eBay's cards here don't show seller feedback, so check it on the item page.
$655.81est. delivered
The lowest Series 0 here at $656 delivered, titled 23 jewels in a Keystone 14K gold-filled case, about $470 under the band. A gap that size on Howard's top grade needs a movement photo showing 23 Jewels and Series 0 before you offer.
E. Howard Series 0 23 Jewel Pocket Watch 16S Keystone 14K Gold Filled
$1,025.00est. delivered
Titled 1915, Series 0, Model 1907 and railroad grade, just under the bottom of the band. The case metal isn't stated and it isn't titled running, so ask about both and budget for a service.
1915 E. Howard Series 0 Model 1907 16 Size 23 Jewels Railroad Grade Pocket Watch
$5,700.00delivered
A Waltham-built 23-jewel Howard, the earlier contract watch, in solid 14K gold with box and papers per the title. The gold explains the ask, so check the karat stamp inside the case and that the papers match the movement serial.
E. HOWARD by Waltham 23j true bridge Model 14k GOLD w/Box & Papers
Delivered prices include shipping as eBay quoted it to a US address on Oct 11, 2026. Many sellers charge by distance, so your total may differ. eBay shows yours before you pay.
Snapshot
Checked . Some may have sold.
Delivered prices include shipping as eBay quoted it to a US address on Oct 11, 2026. Many sellers charge by distance, so your total may differ. eBay shows yours before you pay.
Used$655.81est. delivered
$649.99 + $5.82 shipping
Buy It Now$649.99
This seller takes offers, and many sellers accept less than the asking price.
Fine if you might miss it? Send an offer first. Someone else can still buy it while you wait for a reply.
Want it for sure? Use Buy It Now.
Good buy
Titled Series 0, 23 jewels, Keystone 14K gold filled. About $470 under the band.
Seller: Seller on eBay
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Used$1,025.00est. delivered
$1,000.00 + $25.00 shipping
Buy It Now$1,000.00
This seller takes offers, and many sellers accept less than the asking price.
Fine if you might miss it? Send an offer first. Someone else can still buy it while you wait for a reply.
Want it for sure? Use Buy It Now.
Good buy
Titled 1915, Series 0, Model 1907, railroad grade. Case metal not stated.
Seller: Seller on eBay
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Used$5,700.00delivered
$5,700.00 · free shipping
Buy It Now$5,700.00
Good buy
Solid 14K, Waltham-built, box and papers per the title.
Seller: Seller on eBay
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Used$1,911.70est. delivered
$1,899.00 + $12.70 shipping
Auction · no bids yet
Our take
Waltham-built 23-jewel Howard in a hunter case. Auction, no bids yet.
Seller: Seller on eBay
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Used$899.99delivered
$899.99 · free shipping
Buy It Now$899.99
This seller takes offers, and many sellers accept less than the asking price.
Fine if you might miss it? Send an offer first. Someone else can still buy it while you wait for a reply.
Want it for sure? Use Buy It Now.
Check the seller
Same title as a $1,517 listing. Confirm it's a separate watch with its own photos.
Seller: Seller on eBay
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Used$1,517.49est. delivered
$1,509.50 + $7.99 shipping
Buy It Now$1,509.50
This seller takes offers, and many sellers accept less than the asking price.
Fine if you might miss it? Send an offer first. Someone else can still buy it while you wait for a reply.
Want it for sure? Use Buy It Now.
Check the seller
Same title as a $900 listing. 14K gold filled, swing-out open face.
Seller: Seller on eBay
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Used$1,594.00delivered
$1,594.00 · free shipping
Buy It Now$1,594.00
This seller takes offers, and many sellers accept less than the asking price.
Fine if you might miss it? Send an offer first. Someone else can still buy it while you wait for a reply.
Want it for sure? Use Buy It Now.
Check the seller
Hunter case, gold-lettered movement. Looks like the same watch as a $2,042 listing from Japan.
Seller: Seller on eBay
Check feedback on the listing
Used$2,041.85est. delivered
$1,736.60 + $305.25 shipping
Buy It Now$1,736.60
This seller takes offers, and many sellers accept less than the asking price.
Fine if you might miss it? Send an offer first. Someone else can still buy it while you wait for a reply.
Want it for sure? Use Buy It Now.
Check the seller
Same title as a $1,594 listing, plus $305 shipping from Japan.
Seller: Seller on eBay
Check feedback on the listing
Prices change daily. The live eBay search shows everything listed now, including anything new since Oct 11, 2026.
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