Longines Conquest Automatic L1.642 Chronograph Moon Phase TPD & Winder Settings | Aevitas

A Longines Conquest Automatic L1.642 Chronograph Moon Phase (L1.642) that sits unworn will run its power reserve down within days. Set a winder to 800 turns per day, clockwise rotation only, and it stays wound without any fuss.

Recommended Winder Settings

Setting	Value
Turns per day (TPD)	800
Winding direction	clockwise
Movement

Recommended Winder

Single Watch Winder Carbon Fibre Finish - Aevitas

£239.00

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Why These Settings Matter

Winder settings are about balance. At 800 turns a day, the Conquest Automatic L1.642 Chronograph Moon Phase replaces roughly the energy it uses, keeping amplitude and accuracy where the manufacturer intended. Too few turns and it will eventually stop mid-week; that is the only real risk of an incorrect setting.

Damage from overwinding is not something owners of modern automatics need to fear. The mainspring is fitted with a slipping bridle that slides against the barrel wall at full wind, capping the tension the movement can receive. An over-generous TPD is wasteful, never harmful.

Because all Aevitas winders offer settings from 650 to 1,850 TPD, you can programme exactly 800 TPD for this watch — and reprogramme in moments if you swap watches around.

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