Model: 377:SR626SW. SR626SW, SR626, LR626, L626, S626E, SR66, LR66, V377, D377, GP377, 377, 377A, G4A, G4, SG4, 376, 606, 565, 177, GP77. Chemistry: Silver Oxide. All product is fresh from the manufacturer and you won't find a fresher battery.
eBay