Titleist 690.MB vs Titleist 731.PM
Side-by-side factory specifications. Differing values are highlighted.
Titleist 690.MBforged muscleback · forged carbon steelTitleist 731.PMinvestment cast blended set - cavity back long irons, muscle cavity mid irons, muscleback short irons · 431 stainless steel
Specification comparison
| Club | 690.MB loft | 731.PM loft | 690.MB lie | 731.PM lie | 690.MB length | 731.PM length |
|---|---|---|---|---|---|---|
| 2 | 19 | 18 | 58 | 61 | 39.25 | 39.5 |
| 3 | 22 | 20 | 58.5 | 61 | 38.75 | 39 |
| 4 | 25 | 23 | 59.5 | 62 | 38.25 | 38.5 |
| 5 | 28 | 26 | 60 | 62.5 | 37.75 | 38 |
| 6 | 32 | 29 | 61 | 63 | 37.25 | 37.5 |
| 7 | 36 | 33 | 61.5 | 63 | 36.75 | 37 |
| 8 | 40 | 37 | 62 | 63.5 | 36.25 | 36.5 |
| 9 | 44 | 41 | 62.5 | 64.5 | 35.75 | 36 |
| PW | 48 | 45 | 63 | 64.5 | 35.25 | 35.75 |
Highlighted cells differ between the two sets. Lofts and lies are factory standard.
Which should you choose?
The 731.PM is the stronger-lofted set — up to 3° stronger than the 690.MB on matching clubs. Expect longer carry per numbered iron but a flatter descent angle; gapping at the wedge end is where that shows up.
Both charts are reproduced in full on their own pages: Titleist 690.MB specs and Titleist 731.PM specs.