Certina Heritage Collection

Most Certina Heritage Collection references take a 20 mm watch strap: 18 of 24.

Certina Heritage Collection lug width by case size

24 references measured. Updated 2026-10-29.

Case	Lug width	References	Watch strap attachment	For example
40 mm	20 mm · 13 mm on 3	10	—	C024.407.11.041.01, C024.407.11.051.00, C024.407.17.421.00
41 mm	20 mm	9	—	C024.607.11.041.02, C024.607.11.081.02, C024.607.48.051.10
42 mm	21 mm	1	—	C038.462.16.037.00
43 mm	20 mm · 21 mm on 2	4	—	C024.462.18.041.00, C024.462.36.091.00

References that take a different watch strap

C024.207.11.111.00: 13 mm, not the 20 mm of most 40 mm cases
C024.207.33.111.00: 13 mm, not the 20 mm of most 40 mm cases
C024.207.36.111.00: 13 mm, not the 20 mm of most 40 mm cases
C040.462.18.051.00: 21 mm, not the 20 mm of most 43 mm cases
C040.462.36.041.00: 21 mm, not the 20 mm of most 43 mm cases

Questions about the Certina Heritage Collection

Can two Certina Heritage Collection watches with a 40 mm case take different watch straps?

Yes. Of the 10 Certina Heritage Collection references with a 40 mm case, 7 take 20 mm and 3 take 13 mm. The reference number decides, not the case size alone.