On the Casio website, why are some digital watch models listed with a battery life of 3 years, while other, very similar and equally priced models are listed with a battery life
ENERGIZER Coin Cell Battery: 2032 Battery Size, Lithium, 235 mAh Capacity, 3V DC, 4 PK - 45EJ83|2032BP-4 - Grainger
DURACELL Coin Cell Battery: 2032 Battery Size, Lithium, 210 mAh Capacity, 3V DC, 2 PK - 2HYJ1|DL2032B2PK - Grainger
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