Spirit Zulu Time TPD & Winder Settings | Swiss Watch Store

Left unworn, the Longines Spirit Zulu Time will run down within a couple of days — a correctly set watch winder stops that happening. This model carries reference L3.812.4. It is powered by the Longines Calibre L844.4 movement. Here is the TPD and direction this model calls for.

TPD and Winding Direction

The correct setting for the Spirit Zulu Time is 650–800 turns per day, bidirectional: 650–800 turns per day with the rotor turning in both directions.

Turns per day (TPD)	650–800
Rotation direction	Bidirectional
Movement	Longines Calibre L844.4

Why the Correct Setting Matters

The correct TPD mirrors what your wrist would do naturally across a normal day. It holds the mainspring at a healthy charge so the Spirit Zulu Time runs at its best and is ready to wear at a moment's notice — exactly what a watch winder is for.

Don't worry if you're unsure — you can't break a modern automatic with the wrong winder setting; the slipping bridle on the mainspring makes overwinding impossible. The right setting just keeps everything running at its best.

Choosing a Watch Winder for the Spirit Zulu Time

For the Spirit Zulu Time, look for a programmable winder offering a 650–800 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.

Spirit Zulu Time Winder FAQs

What's the correct TPD setting for the Spirit Zulu Time?

The Spirit Zulu Time is specified at 650–800 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 Spirit Zulu Time?

Yes — provided it's programmable. Verify the winder offers 650–800 turns per day with bidirectional rotation before buying; fixed-setting winders may not match.