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Brt-387c. Wt = 0.88g. Diam = 11.2-11.4mm.
Tongue in buckle |
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Photo from Bob Johnston |
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Wt = 0.89g. Diam = 11.6-11.9mm. No tongue
in buckle |
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Photo from Bob Johnston |
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Wt = 0.84g |
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Photo from Hemanth Chopra |
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