100 Pesos Bimetallic 2006 (Benito Juárez): What It's Worth

If you inherited or found a 2006 Mexican 100 pesos bimetallic coin honoring Benito Juárez, here is the honest answer: in circulated condition it is worth a few US dollars, close to its face value. It is not a rare coin or a hidden fortune. The pieces that command more are pristine uncirculated examples and genuine mint errors, and even those stay modest.

Let's cut through the confusion many US sellers run into. This is a modern commemorative coin, not an antique silver piece, and not the gold Centenario people sometimes confuse it with.

What this coin actually is

The 2006 100 pesos is a bimetallic commemorative coin (a coin made of two metals: a ring of one alloy around a center of another, like a US Sacagawea dollar in construction). Mexico issued it for the bicentennial of the birth of Benito Juárez García, one of the country's most important presidents.

Key specs, straight from the mint:

Detail	Value
Face value	100 pesos
Year	2006
Type	Bimetallic commemorative
Weight	3.71 g
Diameter	21 mm
Edge	Discontinuous reeded
Mint	Casa de Moneda de México (Mexican Mint)
Catalog reference	KM# 764

One point that trips up US owners: the "100 pesos" printed on this coin refers to the new peso, introduced in 1993 after Mexico dropped three zeros from the old currency. So the number 100 does not mean anything close to 100 dollars. At current exchange rates, 100 pesos is roughly 5 to 6 US dollars in pure spending power.

How much is it worth in 2026?

Be realistic about this one.

• Circulated (worn from use): worth its face value plus a small collector premium. Figure a few US dollars.
• Uncirculated (crisp, never spent): a modest premium above face, typically in the low tens of dollars if it grades well.
• Proof or high-grade certified (NGC/PCGS MS66 or better): these can bring more, but this remains a common modern coin, so don't expect a windfall.

This is not a coin that appears in record-breaking auction results. It was produced for circulation and collector sets, and plenty survive. Scarcity, the number one driver of coin value, simply isn't here. If a website tells you a common 2006 100 pesos is worth thousands, that is clickbait, not data.

Don't confuse it with the valuable Mexican coins

The Mexican coins that actually command serious money are a different story. If you have a box of inherited coins, look for these instead:

• The gold Centenario (50 pesos gold, 37.5 g of pure gold), worth over 2,000 US dollars in bullion alone.
• The silver Onza Libertad bullion series.
• Older 8 reales and Caballito pesos.

The 2006 Juárez 100 pesos is not in that tier. It is a keepsake commemorative, valued for the subject and condition, not for precious metal content.

Does it contain silver or gold?

No. This particular 100 pesos is a base-metal bimetallic coin, so there is no melt value floor from silver or gold. Note that Mexico also issued a separate silver-centered commemorative 100 pesos series (the states and heraldic issues) that does contain silver. Those are different coins with different specs, so check your weight and diameter against the table above before assuming which one you have.

How to check what yours is worth

1. Weigh and measure it. Use a jewelry scale and a caliper. Genuine pieces hit 3.71 g and 21 mm. Wrong weight or diameter is a red flag for a fake.
2. Grade the condition. Sharp details, full luster, and no wear point to a higher value. Bag marks, scratches, and dull surfaces drop it to face value.
3. Look for genuine errors. Off-center strikes, die rotation, and doubled strikes can raise value if they are verifiable factory errors. Most "errors" posted online are post-mint damage (dings, corrosion), which adds nothing.
4. Get a second opinion before you sell.

Where to sell it

For a fair price, use a verified numismatic shop from the Pesoteca directory, which can appraise it on the spot, or list it in the Pesoteca buy-and-sell forum among collectors who know the series. Photograph the front, back, and edge, and compare the price range against this page before agreeing to anything. Skip dumping it on a general marketplace to the first random buyer.

Think you have an error or an unusually sharp uncirculated example? Post clear photos in the Pesoteca forum and let the community weigh in before you set a price.