NOS (New Old Stock)

NOS stands for New Old Stock. It describes a watch from an older or discontinued production run that has never been sold to an end customer, never been worn, and never been serviced — remaining in its original packaging since leaving the manufacture. The reference is no longer current; the specific watch is, by every measurable standard, brand new.

What qualifies a watch as NOS

Three conditions must hold for the term to apply legitimately:

• Never worn. No traces on lugs, bracelet, or case back. In most genuine cases the dealer's protective stickers are still in place.
• Never serviced. The movement is exactly in its delivery state. For mechanical watches this is double-edged — the oils have aged, and a service is advisable before sustained use.
• Original packaging complete. Box, papers, every accessory (full set) and ideally the original dealer label.

A 1995 Submariner 16610 bought new that year, kept in a safe for thirty years, and surfacing today as a full set with stickers intact is NOS. The same watch worn occasionally during those years is mint or unworn, but not NOS.

Why NOS commands a premium

NOS examples of discontinued references are bounded — they cannot be created any more. For collectors building a closed reference history, NOS represents the highest tier. Auction houses mark NOS routinely in catalogues. The premium over a worn full set typically sits between 30 and 100 percent.

For especially sought-after pre-Cerachrom models — Submariner 16610LV "Kermit" in NOS, GMT-Master 16710 with aluminium bezel in NOS — premiums of roughly 2x over an ordinary collector example are not unusual.

What NOS is not

Be cautious with listings claiming NOS while showing visible service-replacement parts. True NOS means nothing has been altered since manufacture. A service dial, a swapped bracelet, a polished case — any single one of these excludes the status. The watch may still be in mint condition; it then qualifies as "mint" or "unworn, post-service", not NOS.

A further common misunderstanding concerns factory-recertification programmes. A watch that has been opened, inspected, and restored to original delivery condition by the manufacture is no longer NOS — the intervention is documented and the movement has been oiled.

Risks when purchasing

The NOS designation lifts price significantly and consequently attracts forgery. Standard inspection points:

• Sticker authenticity. Original dealer stickers age visibly — yellowed backing paper, brittle edges. Fresh-looking "protective film" on a vintage reference is a warning sign.
• Documentation consistency. Warranty card, papers, box codes and serial number must match a single delivery date.
• Factory state. A buyer investing in NOS vintage should accept the unopened movement — a supposed service receipt on an NOS piece contradicts the status.

At our atelier in Munich

When an NOS piece comes in for buy-back, we examine the movement state, sticker authenticity, and code coherence in the atelier. On acceptance we leave the protective films in place, document the condition, and pass the piece unchanged to the next owner — NOS status is a one-time asset that can only be lost, never restored.