IWC caliber 73 74 original pars, new old stock.
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| Part no. | Part name | Cal. fit |
| 180/1 | Barrel with mainspring | 73 74 |
| 188 | Maltese Cross | 73 74 |
| 189 | Stop Finger | 73 74 |
| 200 | Centre Wheel & Cannon Pinion | 73 74 |
| 224 | Fourth Wheel | 73 74 |
| 260 | Minute Wheel | 73 74 |
| 401 | Winding Stem | 73 74 |
| 407 | Clutch Wheel | 73 74 |
| 410 | Winding Pinion | 73 74 |
| 415 | Ratchet Wheel | 73 74 |
| 425 | Click | 73 74 |
| 430 | Click Spring | 73 74 |
| 435 | Yoke | 73 74 |
| 443+5443 | Setting Lever & Screw | 73 74 |
| 450 | Setting Wheel | 73 74 |
| 702 | Escape Wheel | 73 74 |
| 723 | Balance Staff | 73 74 |
| 730 | Roller | 73 74 |
| 770 | Mainspring | 73 74 |