Citizen ProMaster

Most Citizen ProMaster references take a 22 mm watch strap: 27 of 45. The lug width follows the case size: 41 mm case → 20 mm, 44 mm case → 20 mm, 45 mm case → 22 mm and 46 mm case → 22 mm.

Shop 18 mm Shop 20 mm Shop 22 mm

Citizen ProMaster lug width by case size

45 references measured. Updated 2026-10-30.

Case	Lug width	References	Watch strap attachment	For example
37 mm	18 mm	1	—	EO2023-00A
40 mm	20 mm · 22 mm on 1	3	—	BJ7150-09L, BJ7150-50W
41 mm	20 mm	5	—	BN0260-54L, BN0261-51E, BN0262-59W
42 mm	22 mm	4	—	BJ7004-43H, JV3000-13E, JV3002-51E
43 mm	22 mm · 20 mm on 1	3	—	JV2000-51L, JV2006-55H
44 mm	20 mm · 22 mm on 4	9	—	BN0150-28E, BN0151-09L, BN0168-06L
45 mm	22 mm	8	—	BN0191-55L, JY8075-51E, JY8078-01L
46 mm	22 mm	7	—	BY3005-56G, BY3006-53H, CA0710-58L
47 mm	20 mm	1	—	CC9030-51E
48 mm	22 mm · 29 mm on 1	2	—	AT8220-55W
53 mm	27 mm · 28 mm on 1	2	—	BN2029-01E

References that take a different watch strap

CA4664-60E: 22 mm, not the 20 mm of most 40 mm cases
JV2005-58E: 20 mm, not the 22 mm of most 43 mm cases
BN0200-56E: 22 mm, not the 20 mm of most 44 mm cases
JV1005-02W: 22 mm, not the 20 mm of most 44 mm cases
JV1007-07E: 22 mm, not the 20 mm of most 44 mm cases
JV1008-63E: 22 mm, not the 20 mm of most 44 mm cases
BJ8050-08E: 29 mm, not the 22 mm of most 48 mm cases
BN7020-17E: 28 mm, not the 27 mm of most 53 mm cases

Questions about the Citizen ProMaster

Do all Citizen ProMaster case sizes take the same watch strap?

No. The lug width changes with the case size: the 41 mm case takes 20 mm, the 44 mm case takes 20 mm, the 45 mm case takes 22 mm and the 46 mm case takes 22 mm. Check your case diameter before you buy.