{"product_id":"case-575-breitling-chronomat-42-ref-ab0158101l1a1-1","title":"Case #575 — Breitling Chronomat 42 Ref. AB0158101L1A1","description":"\u003cpre style=\"font-family:inherit;\"\u003eCASE #575 — BREITLING CHRONOMAT 42 GREEN REF. AB0158101L1A1\nStatus: Active Investigation\nCondition: Very Good Pre-Owned\nScope: Box and Papers (Jomashop Card — No Original Warranty Card)\nYear: Unknown\n\n🔎 CASE NOTES\n\nThe Breitling Chronomat is, without equivocation, the watch that pulled the brand back from the edge and into the modern era. Born in 1984 as a purpose-built instrument for the Italian aerobatic team, the Frecce Tricolori, the Chronomat became the cornerstone of Breitling's identity — bold, mechanical, and unapologetically robust. The Ref. AB0158101L1A1 represents the current evolution of that bloodline: a 42mm stainless steel case fitted with the Breitling Caliber 01 manufacture movement, widely regarded as one of the finest column-wheel chronograph movements in its class. It is not a dress watch pretending to be a tool. It is a tool that happens to dress extremely well.\n\nWhat elevates this particular reference above the crowded Chronomat catalog is the green stick dial — a rich, saturated tone that Breitling has deployed with increasing confidence as the market's appetite for green dials has matured well beyond trend into genuine collecting territory. Paired with the signature rider-tabbed bezel and the architecturally complex president-style bracelet, this configuration strikes a balance that few sport chronographs achieve: it commands wrist presence without descending into spectacle. The green dial variant remains a less-circulated piece compared to the ubiquitous blue and black references, and collectors with a keen eye have taken notice.\n\nThe Chronomat 42 in this configuration is Breitling making its strongest case — that a manufacture-movement chronograph with 70 hours of power reserve, a COSC-certified caliber, and this level of finishing belongs in the same conversation as its Swiss peers at considerably higher price points. The evidence, as always, speaks for itself.\n\n🕰️ THE EVIDENCE\n\nReference: AB0158101L1A1\nModel: Chronomat 42\nCase: Stainless Steel\nCase Size: 42mm\nBezel: Stainless Steel Rider-Tabbed Bezel\nCrystal: Sapphire (AR Coated)\nDial: Green Stick\nMovement: Breitling Caliber 01 — Automatic, Column-Wheel Chronograph, COSC Certified\nBracelet: Stainless Steel President Bracelet\nYear: Unknown\nAccessories: Box, Papers (Jomashop Card)\n\nCondition Notes: Watch is in very nice shape overall. Minor wear present on the high-polished surfaces of the bezel and some visible wear to the sides of the case — consistent with light, careful use. Comes complete with box and papers, though the original Breitling warranty card is absent; a Jomashop purchase card is included in its place.\n\n🔍 MOVEMENT DOSSIER\n\nThe Breitling Caliber 01 is the crown jewel of the brand's in-house manufacturing program, introduced in 2009 after years of development. This is a self-winding column-wheel chronograph with a vertical clutch engagement system — the gold standard for smooth chronograph operation and the same architecture employed by movements costing multiples more. It beats at 28,800 vph, delivers a robust 70-hour power reserve from a single mainspring barrel, and carries an official COSC chronometer certification. Visible through the exhibition caseback, the B01 features a distinctive open-worked rotor and the kind of industrial finishing that rewards close inspection. It is, simply put, one of the strongest arguments in the modern era for Breitling's mechanical bona fides.\n\n🟢 THE GREEN DIAL FILE\n\nGreen dials have transcended the trend cycle. What began as a novelty embraced by a few adventurous manufacturers has solidified into a permanent pillar of the collector palette — and Breitling's execution on this Chronomat is a masterclass in restraint. The green here is deep and lustrous, shifting between forest and emerald depending on the light, with applied stick indices and polished hands that provide crisp legibility against the rich background. Unlike busier chronograph layouts, the Chronomat's three sub-dial arrangement — running seconds at 6, 30-minute counter at 12, and 12-hour counter at 9 — maintains symmetry and breathing room. The date window at 4:30 is discreet enough to avoid disrupting the composition. For collectors seeking a green-dial chronograph that doesn't lean on gimmickry, this dial is a primary exhibit.\n\n🌟 COLLECTOR PROVENANCE\n\nThis example presents in very good condition with the kind of minor, honest wear that confirms the watch was worn and appreciated rather than abused. The light marks on the bezel's polished surfaces and case flanks are well within the range that a routine professional polish could address, though many collectors prefer to leave them as evidence of authentic use. The 42mm case size hits the contemporary sweet spot — authoritative without overwhelming — and the president bracelet elevates the overall package with its multi-link articulation and satisfying heft.\n\nThe asterisk here, and we note it plainly, is the absence of the original Breitling warranty card. A Jomashop purchase card is present, confirming the watch's provenance through one of the world's largest authorized grey-market dealers, but purists and future resale-minded collectors should weigh this accordingly. That said, for the buyer who prioritizes the watch itself — the manufacture movement, the uncommon green dial, the complete box and papers presentation — this gap in the dossier may represent an opportunity rather than an obstacle, as grey-market-sourced examples typically trade at a discount to their full-kit counterparts.\n\n🧾 FROM THE CASE FILE\n\nBreitling Chronomat 42, Ref. AB0158101L1A1. Stainless steel, 42mm case with rider-tabbed bezel and AR-coated sapphire crystal. Green stick dial over in-house Caliber 01 automatic column-wheel chronograph, COSC certified, 70-hour power reserve. Mounted on stainless steel president bracelet. Very good condition with minor surface wear to bezel and case sides. Accompanied by box and Jomashop purchase card; no original Breitling warranty card. Year of production unconfirmed.\n\n🗝️ BST VERDICT\n\nA manufacture-movement chronograph with one of Breitling's most compelling modern dial colors, riding on their most sophisticated bracelet — this is the Chronomat operating at its full potential. The missing warranty card will temper the price and may actually benefit the sharp-eyed buyer who understands what they're getting mechanically and aesthetically. For the collector who buys the watch and not the paperwork, this case merits serious consideration.\n\n👉 Every case deserves a closer look.\u003c\/pre\u003e","brand":"Baker Street Timepieces","offers":[{"title":"Default Title","offer_id":58286807810351,"sku":null,"price":5500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0948\/5359\/5439\/files\/1D0FD26E-F4B1-4ACE-A1AF-3D55731C62FA.jpg?v=1785891747","url":"https:\/\/bakerstreettimepieces.com\/products\/case-575-breitling-chronomat-42-ref-ab0158101l1a1-1","provider":"Baker Street Timepieces","version":"1.0","type":"link"}