Mexican 2 Pesos 1999 Bimetallic Coin: Value & Facts

If you inherited or found a 1999 Mexican 2 pesos coin, here is the honest answer: it is worth close to face value, roughly 2 to 8 pesos (about 10 to 45 US cents). No silver, no gold, and over 34 million were struck. It is a common circulation coin, not a rare find.

We know that is not the answer most people hope for. Sites that promise thrilling values on modern Mexican coins are selling clicks, not facts. The 1999 2 pesos is one of the most ordinary coins México made in the 1990s. Below is exactly what it is, what drives (or kills) its value, and how to check yours.

What this coin actually is

The 2 pesos bimetallic coin is a standard circulation piece Mexico began minting in 1993, cataloged as KM-604. "Bimetallic" means two metals: a golden-colored center and a silver-colored outer ring.

• Center: aluminum bronze (92% copper, 6% aluminum, 2% nickel)
• Outer ring: stainless steel
• Weight: 5.19 grams total (the steel ring accounts for about 2.81 g, the bronze center the rest)
• Diameter: 23 mm

There is no precious metal in this coin. That matters because it means there is no bullion floor holding up its value. A silver coin is always worth at least its melt value; this one is worth only what a collector will pay, and collectors are not chasing it.

What the design shows

The reverse (the side people usually ask about) has the number 2 in the center, the date 1999, and the mint mark Mo, which stands for the Casa de Moneda de México (the Mexican Mint). The outer ring carries a stylized version of the Ring of Days from the Piedra del Sol, better known as the Aztec Calendar.

The obverse shows the Mexican national coat of arms (an eagle on a cactus devouring a serpent) with the legend ESTADOS UNIDOS MEXICANOS.

How much is a 1999 2 pesos worth in 2026?

In plain terms: face value or a little above.

Coin	Year	Condition	Real value
2 Pesos bimetallic (KM-604)	1999	Circulated (worn)	Face value, about 2 pesos
2 Pesos bimetallic (KM-604)	1999	Better circulated grades	2 to 8 pesos (catalog range, Numista)
2 Pesos bimetallic (KM-604)	1999	Uncirculated, full mint luster	Tens of pesos at most among collectors

Even a pristine, uncirculated example with original factory shine and no marks tops out in the range of a few US dollars, not thousands. The reason is simple math, covered next.

Why it is not rare (and never will be)

The verified 1999 mintage was 34,713,000 coins (source: Numista). That is nearly 35 million pieces. When tens of millions of a coin exist, scarcity cannot drive the price, no matter how old the coin looks or feels.

This is the myth we correct constantly: age and "it looks old" do not equal value. Value comes from real rarity (low mintage or few survivors), demand, and grade. The 1999 2 pesos fails on rarity and demand. It only has upside in top grade, and even then the ceiling is low.

The one thing that could make yours worth more: errors

Bimetallic coins have a specific list of errors that collectors pay for:

• Off-center core: the golden center sits off to one side.
• Rotated core: the center is turned relative to the ring.
• Missing core: the center is absent entirely (a ring with a hole).

These are genuinely scarce and must be verified coin by coin. A normal 1999 2 pesos with no confirmed error is worth face value. If yours looks unusual, do not assume; a damaged or altered coin is not the same as a mint error, and only authentication tells them apart.

How to tell if yours is genuine

Counterfeits of a coin worth pennies are rare, but here is the quick check:

1. Weight: it should be 5.19 grams. A cheap kitchen scale that reads to 0.1 g will do.
2. Diameter: 23 mm.
3. Construction: genuinely bimetallic, golden center, silver ring.
4. Mint mark: the Mo must appear on the reverse.
5. Design: the Aztec Calendar motif on the reverse ring.

If weight, size, and design all match, it is authentic.

Where to sell it (and whether it is worth the effort)

Because almost everyone in Mexico handled these coins, supply is enormous and buyers are picky. A single worn coin is not something a dealer will pay for. Your realistic options:

• Uncirculated examples or a full bimetallic set: these can interest collectors. Compare yours against the complete 2 pesos bimetallic series before deciding.
• A lot or a whole inherited box: selling in bulk to a shop or collector makes more sense than one coin at a time.

For serious dealers and collectors, check the Pesoteca store directory. For background on the coinage this piece belongs to, see the nuevos pesos era.

Have a 1999 2 pesos that looks off-center, rotated, or missing its core? Post clear photos of both sides in the Pesoteca forum and we will help you tell a real mint error from ordinary damage.

When Banxico dropped the N$ prefix from the peso starting in 1996, the circulating pieces kept the same physical format as their Nuevos Pesos equivalents from the decree of June 22, 1992. This 2-peso bimetallic coin struck in 1999 is part of that continuity: same technical specifications, same base design with the National Coat of Arms on the obverse; only the face value visible on the reverse changed. That is why when you line up the dates you see long sequences with very little variation.

For the Mexican collector building a collection by year, these pieces are the ones that fill the basic gaps before hunting down the rare commemorative versions. Banxico has documented mintages in its Monetary Circular CM10 since the year 2000, so for 1999 it is possible to verify the exact mintage against that source. Pesoteca catalogs each year as a distinct physical piece in the PSM System family C, following our convention of one ID per collectible piece, not per shared design.