Ultra-Chron with high-frequency movement
8309
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- 34.5 mm · Stainless steel
- Calibre
- 431
- Dial
- Sunray silver
- Bracelet
- Leather

8309
0 own · 0 want
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The Longines Longines Ultra-Chron with high-frequency movement 8309 is no longer in production. It has a 34.5 mm stainless steel case. It has a silver sunburst dial. It uses the automatic calibre 431. Its functions include date. It comes on a stainless steel leather strap.
Generated from the collected facts.
From other collections and brands, ranked by recorded size, case metal, dial, bezel, water resistance, movement, bracelet, lume and power reserve.








| When (UTC) | Field | Change | By |
|---|---|---|---|
| 23 Oct 2026 15:45 | model_name | Longines Ultra-Chron featuring … → Longines Ultra-Chron with high-… | Longines |
| 23 Oct 2026 15:45 | dial_pattern | — → sunburst | Longines |
| 23 Oct 2026 15:45 | dial_color | white → silver | Longines |
| 23 Oct 2026 15:45 | bracelet_type | bracelet → leather | Longines |
| 23 Oct 2026 15:45 | caliber_id | — → 630 | Longines |
| 23 Oct 2026 15:45 | production_status | unknown → discontinued | Longines |
| 23 Oct 2026 15:45 | movement_type | — → automatic | Longines |
| 23 Oct 2026 15:45 | lug_width_mm | — → 18 | Longines |
| 23 Oct 2026 15:45 | jewels | — → 25 | Longines |
| 23 Oct 2026 15:45 | hands_style | — → baton | Longines |
| 23 Oct 2026 15:45 | functions | [] → ["Hour, minute, second and date… | Longines |
| 23 Oct 2026 15:45 | frequency_vph | — → 36000 | Longines |
| 23 Oct 2026 15:45 | dial_color | — → white | Longines |
| 23 Oct 2026 15:45 | case_shape | — → round | Longines |
| 23 Oct 2026 15:45 | case_material | — → stainless_steel | Longines |
| 23 Oct 2026 15:45 | case_diameter_mm | — → 34.5 | Longines |
| 23 Oct 2026 15:45 | bracelet_type | — → bracelet | Longines |
| 23 Oct 2026 15:45 | bracelet_material | — → stainless_steel | Longines |
14 further observations were superseded, outvoted or are waiting for review.
Primary source: Longines (Official brand, trust 5 of 5)Review: AutoLast collected: 23 Oct 2026Last verified: —Family: 8309