Star Legacy Automatic Date 42 TPD & Winder Settings | Swiss Watch Store
Left unworn, the Montblanc Star Legacy Automatic Date 42 will run down within a couple of days — a correctly set watch winder stops that happening. This model carries reference 118516. It is powered by the Cal. MB 29.12 movement. Here is the TPD and direction this model calls for.
TPD and Winding Direction
The correct setting for the Star Legacy Automatic Date 42 is 650 turns per day, bidirectional: 650 turns per day with the rotor turning in both directions.
| Turns per day (TPD) | 650 |
| Rotation direction | Bidirectional |
| Movement | Cal. MB 29.12 |
Why the Correct Setting Matters
An automatic watch is only as accurate as its power reserve allows. Keep the mainspring properly tensioned and the Star Legacy Automatic Date 42 will hold its rate and be ready to wear the instant you pick it up — no resetting the time and date. Set the TPD too low and the watch can run down between wears. The movement will not be damaged (modern automatics have a slipping mainspring that prevents overwinding), but an under-wound watch is simply not doing its job. Correct settings are about accuracy and readiness, not safety.
Choosing a Watch Winder for the Star Legacy Automatic Date 42
For the Star Legacy Automatic Date 42, look for a programmable winder offering a 650 TPD bidirectional programme. One watch? A single winder. Two or more automatics? A double or triple winder keeps the whole rotation ready. You'll find suitable models in our watch winder collection — check the programme list before you buy.
Star Legacy Automatic Date 42 Winder FAQs
What's the correct TPD setting for the Star Legacy Automatic Date 42?
The Star Legacy Automatic Date 42 is specified at 650 turns per day. Most programmable winders offer this as a standard preset.
Which winding direction should I use?
Bidirectional — the winder should rotate in both clockwise and anticlockwise directions.
Can I use any watch winder for my Star Legacy Automatic Date 42?
Yes — provided it's programmable. Verify the winder offers 650 turns per day with bidirectional rotation before buying; fixed-setting winders may not match.