Altivo Timepieces is an authorized G-Shock retailer that used to have a store on Melrose Avenue in Los Angeles, but it appears to be only online these days at altivo.com. Altivo is also a seller on Amazon and is usually one of the first to offer new G-Shock models there.
Altivo is currently offering a free G-Shock-branded Mini Maglite with the purchase of a select watch from altivo.com. (Shipping available to U.S. addresses only.) The qualifying watches include high-end models from the GMW-B5000, MT-G, and MR-G series, with the least expensive options being the GMWB5000G-2 (blue IP with black resin band) for $500 and the GMWB5000D-1 (silver) for $550.