Longines
Master Collection Chrono Monopusher
Ref. L2.960.4.93.2
2026–present · 41mm · caliber Longines Cal. L799.5: Swiss manual-wind single-pusher column-wheel chronograph with vertical clutch, 28,800bph, ~68h PR; Longines-exclusive, developed from the L788 series
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Movement tier: unclassified
Medium-large: suits wrists 6.5 in+ (16.5 cm+)
41 mm case. 21 mm lug width. Wears confidently on average to larger wrists. May overhang on slender builds.
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Authentication
A current-production Longines at this price is not a meaningful counterfeit target, so the useful checks are about the single-pusher chronograph working correctly rather than about the watch being real.
Known issues in the market
- A monopusher runs start, stop and reset through one button in a fixed order. Pressing out of sequence does nothing on a healthy watch and forces nothing on a worn one, so a pusher that will reset from a running state is a fault.
- Column-wheel chronographs are the part of the watch that shows neglect first. A chronograph that has never been run in years often needs a service before it behaves.
- The pulsometer is printed on the dial and does nothing mechanically. It is a scale, not a complication, and it does not affect what the watch should cost.
| Area | What to check | What is correct | Red flag |
|---|---|---|---|
| movement | Single-pusher sequence | Successive presses give start, then stop, then reset, in that order and no other | A press that resets a running chronograph, or a reset that leaves the hand short of zero |
| dial | Chronograph seconds return to zero | The central chronograph hand lands exactly on the zero marker every reset | A hand that consistently stops a fraction past or short of zero |
| dial | Frosted blue barleycorn surface | An even pattern across the whole dial with consistent depth under angled light | Pattern that fades or flattens in one area, which suggests moisture or a refinished dial |
| crown | Manual winding feel | Even resistance building to a firm stop at full wind, with roughly 68 hours of reserve | A crown that keeps turning with no stop, or a reserve well short of the rating |
Common legitimate replacements
- Straps are consumable and are replaced routinely.
- Chronograph hands are occasionally replaced after a reset fault; confirm they match in finish and length.
Expert resources: Longines service can confirm the reference and caliber. Any competent chronograph watchmaker can assess a column-wheel monopusher.
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Buying guidance
Sources for this entry: longines.com · monochrome-watches.com
Pre-purchase sheet → The numbers to check, what to look at and what to ask, on one printable page.