Our MoP Classic item table (the Blizzard item records our Auction House scanner has collected) has 5 other mail wrist items between item level 339 and 364; 4 of them carry fixed stats.
Cheapest listed mail wrist items at a similar or higher item level: Saurok Bracers at 24 gold (item level 364, requires level 83), Bloodthirsty Dragonscale Bracers at 1,000 gold (item level 358, requires level 85).
Other armor types for the wrist slot within 6 item levels of 346: plate (1): Terborus's Rotating Bands.
Connected realms with a listing in the latest MoP Classic scan: EU 0 of 25, KR 0 of 5, TW 0 of 8, US 0 of 23.
Item data: MoP Classic client datamine, build 5.5.4.70631. Prices: per-unit buyouts from one Blizzard Auction House snapshot per connected realm per hour; market is the quantity-weighted median of a realm's listings. Retail column: the retail client datamine.
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