https://timeandtension.com/journal/Watchmaking news, technique and history.https://timeandtension.com/journal/balance-hairspring-isochronism-amplitude/https://timeandtension.com/journal/balance-hairspring-isochronism-amplitude/Tue, 13 Oct 2026 09:00:00 +0000Real worldA watch keeps time with a little wheel and a spring finer than a hair. Here is how that pair works, what "isochronism" means in plain words, and why watchmakers watch the amplitude number so closely.https://timeandtension.com/journal/blancpain-lady-b-ladybird-70-years/https://timeandtension.com/journal/blancpain-lady-b-ladybird-70-years/Tue, 13 Oct 2026 09:00:00 +0000Real worldBlancpain celebrates the 1956 Ladybird with a 19 mm spherical watch and one of the smallest automatic movements still in production.https://timeandtension.com/journal/breguet-tourbillon-patent-1801/https://timeandtension.com/journal/breguet-tourbillon-patent-1801/Tue, 13 Oct 2026 09:00:00 +0000Real worldThe tourbillon is now a luxury showpiece. In 1801 it was a practical fix for a real problem in pocket watches, and Breguet's patent says exactly what he thought it would do.https://timeandtension.com/journal/fortis-werk-17-tr-free-sprung-balance/https://timeandtension.com/journal/fortis-werk-17-tr-free-sprung-balance/Tue, 13 Oct 2026 09:00:00 +0000Real worldThe new Fortis Werk 17 TR swaps the regulator index for screws on the balance rim. A plain-English look at why that matters, and what it means for a watchmaker.https://timeandtension.com/journal/harrison-h4-longitude-prize/https://timeandtension.com/journal/harrison-h4-longitude-prize/Tue, 13 Oct 2026 09:00:00 +0000Real worldIn 1714 Parliament offered a fortune to anyone who could fix a ship's position east to west. Astronomers expected to win it. A self-taught Yorkshire carpenter won with a big silver watch.https://timeandtension.com/journal/laurent-ferrier-sport-traveller-slate-grey/https://timeandtension.com/journal/laurent-ferrier-sport-traveller-slate-grey/Tue, 13 Oct 2026 09:00:00 +0000Real worldA titanium sports watch with a new in-house calibre that jumps local time by the hour. And, unusually for the brand, a Swiss lever escapement.https://timeandtension.com/journal/lever-escapement-step-by-step/https://timeandtension.com/journal/lever-escapement-step-by-step/Tue, 13 Oct 2026 09:00:00 +0000Real worldNearly every mechanical watch made today ticks through the same small cycle, many times a second. Here is what happens in each step, and why watchmakers care about a few hundredths of a millimetre.https://timeandtension.com/journal/moser-streamliner-tourbillon-skeleton-ceramic-alpine/https://timeandtension.com/journal/moser-streamliner-tourbillon-skeleton-ceramic-alpine/Tue, 13 Oct 2026 09:00:00 +0000Real worldThe third H. Moser & Cie. watch made with Alpine pairs an anthracite ceramic case with a blue, fully openworked tourbillon movement. 100 pieces.https://timeandtension.com/journal/nomos-tetra-27-white-and-duo/https://timeandtension.com/journal/nomos-tetra-27-white-and-duo/Tue, 13 Oct 2026 09:00:00 +0000Real worldNOMOS Glashütte has added a plain white and a two-tone version to its smallest square watch. Both are hand-wound and only 27.5 mm per side.https://timeandtension.com/journal/patek-5978p-instantaneous-perpetual-calendar/https://timeandtension.com/journal/patek-5978p-instantaneous-perpetual-calendar/Tue, 13 Oct 2026 09:00:00 +0000Real worldA new hand-wound perpetual calendar chronograph whose calendar jumps in about 30 milliseconds. What that means, and what it costs the movement.https://timeandtension.com/journal/ressence-type-11-rw-01/https://timeandtension.com/journal/ressence-type-11-rw-01/Tue, 13 Oct 2026 09:00:00 +0000Real worldThe Belgian brand known for its rotating-disc dials now has a movement designed around them. A triangular calibre, two barrels and no crown.https://timeandtension.com/journal/swiss-watch-exports-august-2026/https://timeandtension.com/journal/swiss-watch-exports-august-2026/Tue, 13 Oct 2026 09:00:00 +0000Real worldExports rose 9.1% in August, but shipments to the largest market, the United States, fell by almost a fifth. Here is what the numbers do and do not say.https://timeandtension.com/journal/voutilainen-28sport-phillips-new-york/https://timeandtension.com/journal/voutilainen-28sport-phillips-new-york/Tue, 13 Oct 2026 09:00:00 +0000Real worldA Voutilainen 28Sport made more than four times its high estimate at Phillips in New York. What that says about independent watchmaking.