Girard-Perregaux 1966

Most Girard-Perregaux 1966 references take a 20 mm watch strap: 31 of 47. The lug width follows the case size: 36 mm case → 18 mm, 38 mm case → 20 mm, 40 mm case → 20 mm and 41 mm case → 20 mm.

Shop 16 mm Shop 18 mm Shop 18 mm Shop 20 mm Shop 20 mm Shop 21 mm Shop 21 mm Shop 22 mm

Girard-Perregaux 1966 lug width by case size

47 references measured. Updated 2026-10-29.

Case	Lug width	References	Watch strap attachment	For example
30 mm	15 mm · 16 mm on 1 · 18 mm on 1	4	—	49528-52-771-CK6A, 49528D52A131-CB6A
36 mm	18 mm	6	—	49523-11-171-11A, 49523-11-171-CB6A, 49523D11A171-CB6A
38 mm	20 mm · 18 mm on 1	8	—	49525-52-131-52A, 49525-52-131-BK6A, 49525-52-432-BB4A
40 mm	20 mm · 18 mm on 2	22	—	49529-52-131-BABA, 49529-52-231-BA6A, 49534-52-R04-BB60
41 mm	20 mm · 21 mm on 2	6	—	49527-52-131-BK6A, 49527-52-431-BB4A, 49527-53-131-BK6A
44 mm	22 mm	1	—	49551-52-231-BB60

References that take a different watch strap

49528D11A172-CB6A: 18 mm, not the 15 mm of most 30 mm cases
49528D52A771-CK6A: 16 mm, not the 15 mm of most 30 mm cases
49525-52-133-BB60: 18 mm, not the 20 mm of most 38 mm cases
49555-11-1A1-11A: 18 mm, not the 20 mm of most 40 mm cases
49555D11A131-11A: 18 mm, not the 20 mm of most 40 mm cases
49543-52-B31-BK6A: 21 mm, not the 20 mm of most 41 mm cases
49546-53-131-BB60: 21 mm, not the 20 mm of most 41 mm cases

Questions about the Girard-Perregaux 1966

Do all Girard-Perregaux 1966 case sizes take the same watch strap?

No. The lug width changes with the case size: the 36 mm case takes 18 mm, the 38 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.