Patek Philippe Complications

Most Patek Philippe Complications references take a 20 mm watch strap: 81 of 176. The lug width follows the case size: 38 mm case → 20 mm, 39 mm case → 20 mm, 40 mm case → 20 mm and 42 mm case → 21 mm.

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Patek Philippe Complications lug width by case size

176 references measured; 6 more have an integrated bracelet. Updated 2026-10-29.

Case	Lug width	References	Watch strap attachment	For example
31 mm	18 mm	1	—	7180/1G-001
33 mm	18 mm · 16 mm on 2 · 20 mm on 2 · 15 mm on 1	8	—	4968G-001, 4968R-001, 7121/1J-001
35 mm	18 mm · 20 mm on 2 · 19 mm on 1	5	—	7071G-001, 7071G-010
36 mm	18 mm · 20 mm on 1	9	—	7130G-014, 7130G-015, 7130G-016
37 mm	20 mm · 18 mm on 2 · 19 mm on 1	13	—	4675G, 4675G-001, 4675R
38 mm	20 mm · 18 mm on 6 · 19 mm on 3 · 21 mm on 1	19	—	4947G-001, 4947G-010, 4947R-001
39 mm	20 mm · 21 mm on 15 · 18 mm on 1 · 19 mm on 1 · 22 mm on 1	44	—	5146/1G-001, 5146/1G-010, 5146/1R-001
40 mm	20 mm · 21 mm on 11 · 18 mm on 2 · 19 mm on 1 · 22 mm on 1	37	—	5130/1R-011, 5130G-019, 5130J-001
41 mm	21 mm · 20 mm on 6	18	—	5326G-001, 5960/01G-001, 5960/1A-011
42 mm	21 mm · 22 mm on 4 · 20 mm on 3 · 18 mm on 1	22	—	5070G-001, 5070J-001, 5070P-001

References that take a different watch strap

4968/400R-001: 20 mm, not the 18 mm of most 33 mm cases
4968G-010: 15 mm, not the 18 mm of most 33 mm cases
7121/200G-001: 16 mm, not the 18 mm of most 33 mm cases
7121/200G-010: 20 mm, not the 18 mm of most 33 mm cases
7121J-001: 16 mm, not the 18 mm of most 33 mm cases
7071R-001: 20 mm, not the 18 mm of most 35 mm cases
7071R-010: 19 mm, not the 18 mm of most 35 mm cases
7134G-001: 20 mm, not the 18 mm of most 35 mm cases
7130G-010: 20 mm, not the 18 mm of most 36 mm cases
4936G-001: 18 mm, not the 20 mm of most 37 mm cases
4937G-001: 18 mm, not the 20 mm of most 37 mm cases
4937R-001: 19 mm, not the 20 mm of most 37 mm cases
4946R-001: 19 mm, not the 20 mm of most 38 mm cases
4947/1A-001: 19 mm, not the 20 mm of most 38 mm cases
4947G-010 T: 18 mm, not the 20 mm of most 38 mm cases
4948G-001: 18 mm, not the 20 mm of most 38 mm cases
4948R-001: 19 mm, not the 20 mm of most 38 mm cases
5396/1R-010: 18 mm, not the 20 mm of most 38 mm cases
5396G-012: 21 mm, not the 20 mm of most 38 mm cases
7234A-001: 18 mm, not the 20 mm of most 38 mm cases
7234G-001: 18 mm, not the 20 mm of most 38 mm cases
7234R-001: 18 mm, not the 20 mm of most 38 mm cases
5135G-010: 21 mm, not the 20 mm of most 39 mm cases
5146/1J-001: 19 mm, not the 20 mm of most 39 mm cases

And 45 more in the full list below.

Questions about the Patek Philippe Complications

Do all Patek Philippe Complications case sizes take the same watch strap?

No. The lug width changes with the case size: the 38 mm case takes 20 mm, the 39 mm case takes 20 mm, the 40 mm case takes 20 mm, the 41 mm case takes 21 mm and the 42 mm case takes 21 mm. Check your case diameter before you buy.

Can two Patek Philippe Complications watches with a 39 mm case take different watch straps?

Yes. Of the 44 Patek Philippe Complications references with a 39 mm case, 26 take 20 mm, 15 take 21 mm and 1 take 18 mm. The reference number decides, not the case size alone.