#352 • John Poole, spring detent pocket chronometer w/helical hairspring, 18K

Part of 261022 - "Fall Featured Auction" Horology, Jewelry & Coins - October 1 - 22 (timed auction by Jones & Horan Auctions)

High bid $2,300.00

Status: Available

Live bidding starts Oct 22, 2026 11:00 AM EDT

EPW - John Poole, 57 Fenchurch St., London, fusee pocket chronometer with spring detent escapement, free-sprung helical hairspring, and 30-hour winding indicator, 49mm, 18K gold OF original case bearing Longon hallmarks for 1874, gold cuvette engraved "Frank Cosens, from Papa, July 1869", white enamel SS dial, KWKS (key not included with this lot), fully capped escape, fourth, and third wheels, free-sprung balance with helical hairspring and diamond endstone, 18-19J, gilt mvt, s#4325 with matching serial number within case. Gross weight of assembled watch 70.7 dwt (109.9 g). In need of service, but an attractive piece deserving of the effort, with balance and escapement having good action when going pressure is added to its train. CONDITION: Mvt: NR, ticks and stops, good balance and escapement action when going pressure is held at winding arbor, excellent-plus cosmetic mvt condition overall, few scattered fine scratches from prior service, light hazing to plate; dial with short hl outside eight, flake to sub-seconds register above 12; excellent-plus hands with some micro-fine scratches; case shows light wear, scattered light dings to perimeter and shoulder, reduced engine turning detail with ring of full loss at shoulder; tight bow; good glass crystal. Estimate: $5,000 - $6,200 JH-79920