Lang & Heyne Friedrich August 1.
Every Lang & Heyne Friedrich August 1. reference takes a 20 mm watch strap: all 4 we measured.
Lang & Heyne Friedrich August 1. lug width by case size
4 references measured. Updated 2026-11-10.
| Case | Lug width | References | Watch strap attachment | For example |
|---|---|---|---|---|
| 44 mm | 20 mm | 4 | — | FA1 Variation 1, FA1 Variation 2, FA1 Variation 4 |
