A. Lange & Söhne Saxonia

Most A. Lange & Söhne Saxonia references take a 20 mm watch strap: 65 of 131. The lug width follows the case size: 34 mm case → 18 mm, 37 mm case → 19 mm, 39 mm case → 20 mm and 40 mm case → 20 mm.

Shop 18 mm Shop 19 mm Shop 20 mm Shop 22 mm

A. Lange & Söhne Saxonia lug width by case size

131 references measured. Updated 2026-10-29.

Case	Lug width	References	Watch strap attachment	For example
34 mm	18 mm	13	—	102.001, 102.002, 105.021
35 mm	18 mm · 20 mm on 1	7	—	219.026, 219.028, 219.032
37 mm	19 mm · 20 mm on 2	28	—	215.021, 215.026, 215.029
39 mm	20 mm · 19 mm on 6	37	—	205.086, 310.021, 310.025
40 mm	20 mm · 18 mm on 3	15	—	211.026, 211.027, 211.032
41 mm	20 mm	13	—	405.028, 405.031, 405.034
42 mm	20 mm	3	—	740.036, 740.055FE, 740.056
43 mm	22 mm	7	—	404.032, 404.035, 404.035X
46 mm	22 mm	3	—	130.025, 130.032, 130.039
not recorded	20 mm · 18 mm on 1 · 22 mm on 1	5	—	310-032-E, 310-05, 410-038-E

References that take a different watch strap

219.047: 20 mm, not the 18 mm of most 35 mm cases
201.027: 20 mm, not the 19 mm of most 37 mm cases
201.033: 20 mm, not the 19 mm of most 37 mm cases
381.026: 19 mm, not the 20 mm of most 39 mm cases
381.029: 19 mm, not the 20 mm of most 39 mm cases
381.031: 19 mm, not the 20 mm of most 39 mm cases
381.032: 19 mm, not the 20 mm of most 39 mm cases
842.026: 19 mm, not the 20 mm of most 39 mm cases
842.032: 19 mm, not the 20 mm of most 39 mm cases
384.029: 18 mm, not the 20 mm of most 40 mm cases
384.031: 18 mm, not the 20 mm of most 40 mm cases
384.032: 18 mm, not the 20 mm of most 40 mm cases
424-037F: 22 mm
878-029-LSLS2163XS: 18 mm

Questions about the A. Lange & Söhne Saxonia

Do all A. Lange & Söhne Saxonia case sizes take the same watch strap?

No. The lug width changes with the case size: the 34 mm case takes 18 mm, the 37 mm case takes 19 mm, the 39 mm case takes 20 mm, the 40 mm case takes 20 mm and the 41 mm case takes 20 mm. Check your case diameter before you buy.

Can two A. Lange & Söhne Saxonia watches with a 39 mm case take different watch straps?

Yes. Of the 37 A. Lange & Söhne Saxonia references with a 39 mm case, 31 take 20 mm and 6 take 19 mm. The reference number decides, not the case size alone.