This uses the H-10 movement. From what I read it's supposedly more accurate than 2824-2 and has a longer power reserve.
Apply promo code AFFJAZZM339
at checkout to drop the price to $339
(make sure there is no space after entering the coupon or it won't work)
Product Link [ashford.com]
Shipping is free
YMMV, but check your Amex offers. I had: "Get 5,000 additional Membership Rewards points one-time by using your enrolled Card to spend a minimum of $250+ in one or more eligible transactions online at ashford.com [ashford.com] by 8/18/2017. See terms for exclusions."
Some people reported getting $50 back on $250 in other threads here.