Hello up for sale is a beautiful Gruen chronograph 770R with original minty dial and handset. New aftermarket crystal just added. Case is 37mm (excluding crown). Fits, looks and feels great on the wrist. Valjoux 7730 runs and winds well, all chrono functions work crisply and as designed. Keeps great time but service history unknown. Runs about 30 hours when fully wound. Research shows Gruen used this calibre Valjoux 7730 ca. 1966-73; Id guess it’s a late 60’s model. Sold on a light brown leather strap. Price is NOW only $1100 (down from $1195) PayPal ok for known members, friends, or members with references. Otherwise please contact me for details. Shipping FedEx in USA included. Return within 3 days if not as pictured. I will refund your money upon receipt of the watch in the same condition in which it was sent to you. Thanks for looking I can be reached here via PM or email: ccrolex at hotmail dot com For fastest response call/text/WhatsApp +1 3611813-517seven Regards Robby I have several pages of references on The Rolex Forum in the Who’s Who subforum (username southtexas). I also sell a great deal on VRF, and 100% eBay seller rating (username Southtexas111 on those). Here’s a link to TRF: https://www.rolexforums.com/search.php?searchid=22321763