Hamilton Khaki Field

Most Hamilton Khaki Field references take a 20 mm watch strap: 161 of 230. The lug width follows the case size: 38 mm case → 20 mm, 40 mm case → 20 mm, 42 mm case → 20 mm and 44 mm case → 22 mm.

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Hamilton Khaki Field lug width by case size

230 references measured; 6 more have an integrated bracelet. Updated 2026-10-30.

Case	Lug width	Buckle width	References	Watch strap attachment	For example
27 mm	14 mm	—	3	—	H64211133, H64211523, H64211533
33 mm	18 mm · 20 mm on 1	18 mm	12	—	H68311533, H69301110, H69301130
36 mm	18 mm	—	2	—	H69399930, H89399930
37 mm	20 mm · 16 mm on 1	—	9	—	H70225130, H70225510, H70225540
38 mm	20 mm	18 mm	73	—	\| H69401110, H68201043, H68201063
40 mm	20 mm	18 mm	36	—	H64451133, H64451333, H64451533
41 mm	20 mm	—	9	—	H70315110, H70315130, H70315510
42 mm	20 mm · 22 mm on 26 · 21 mm on 1	20 mm	59	—	H60416533, H60416583, H64656351
44 mm	22 mm	—	17	—	H69619333, H69619533, H69619933
45 mm	22 mm	—	2	—	H60515533, H60515593
50 mm	24 mm	—	3	—	H69809730, H69819530, H69829560
not recorded	20 mm · 22 mm on 2 · 18 mm on 1	—	5	—	H6006941041, H70405740

References that take a different watch strap

H69319363: 20 mm, not the 18 mm of most 33 mm cases
H70225110: 16 mm, not the 20 mm of most 37 mm cases
H60455593: 21 mm, not the 20 mm of most 42 mm cases
H69529113: 22 mm, not the 20 mm of most 42 mm cases
H69529133: 22 mm, not the 20 mm of most 42 mm cases
H69529913: 22 mm, not the 20 mm of most 42 mm cases
H69529933: 22 mm, not the 20 mm of most 42 mm cases
H70515137: 22 mm, not the 20 mm of most 42 mm cases
H70535131: 22 mm, not the 20 mm of most 42 mm cases
H70555523: 22 mm, not the 20 mm of most 42 mm cases
H70555533: 22 mm, not the 20 mm of most 42 mm cases
H70555863: 22 mm, not the 20 mm of most 42 mm cases
H70605140: 22 mm, not the 20 mm of most 42 mm cases
H70605160: 22 mm, not the 20 mm of most 42 mm cases
H70605163: 22 mm, not the 20 mm of most 42 mm cases
H70605540: 22 mm, not the 20 mm of most 42 mm cases
H70605560: 22 mm, not the 20 mm of most 42 mm cases
H70605731: 22 mm, not the 20 mm of most 42 mm cases
H70605733: 22 mm, not the 20 mm of most 42 mm cases
H70605943: 22 mm, not the 20 mm of most 42 mm cases
H70605963: 22 mm, not the 20 mm of most 42 mm cases
H71516137: 22 mm, not the 20 mm of most 42 mm cases
H71556537: 22 mm, not the 20 mm of most 42 mm cases
H71556593: 22 mm, not the 20 mm of most 42 mm cases

And 8 more in the full list below.

Questions about the Hamilton Khaki Field

Do all Hamilton Khaki Field case sizes take the same watch strap?

No. The lug width changes with the case size: the 33 mm case takes 18 mm, the 38 mm case takes 20 mm, the 40 mm case takes 20 mm, the 42 mm case takes 20 mm and the 44 mm case takes 22 mm. Check your case diameter before you buy.

Can two Hamilton Khaki Field watches with a 42 mm case take different watch straps?

Yes. Of the 59 Hamilton Khaki Field references with a 42 mm case, 32 take 20 mm, 26 take 22 mm and 1 take 21 mm. The reference number decides, not the case size alone.