Skip to content


Your cart is empty

Gruen Day-Nite "Jump" Dial ref. 510 RSS CA Silver Sunburst Dial 1960s Wristwatch

Sale price$ 849
+ Free ShippingThis product ships free within the contiguous US.
Brand Gruen
Day-Nite "Jump" Dial ref. 510 RSS CA Silver Sunburst Dial circa early 1960s
Case 34mm chrome-plated case with stainless steel back
18mm black genuine Italian calfskin strap
Gruen N510CA movement completely overhauled in 2021
Very nice original condition overall with cool day-nite "jump" dial; very rare watch to find in this condition


Features: Unique silver dial with open apertures for day/nite displays; original winding crown; original luminous hands; Gruen cal. N510CA; 17 jewels; day-nite "jumping" feature; hour markers flip from black during daytime hours (~6 A.M. to ~6 P.M.) to luminous "nite-glo" green during the nighttime hours

Returns Policy for Vintage Watches

We take pride in providing honest and accurate descriptions for all of our curated timepieces. We display numerous high-resolution photographs of each timepiece. We also strongly encourage you to contact us if you require any additional details, descriptions or photographs before making a purchase decision. Please treat your decision to purchase as a final sale. Any requests for a return will be granted solely at our discretion and only for extenuating circumstances. Buyers must contact us within three (3) days after the date of delivery for a return authorization. If granted, the return must be shipped fully insured with return postage paid by the buyer. If granted, the original purchase price, minus a 10% restocking fee, will be refunded. A refund will be issued ONLY if the watch arrives in the same condition, and with all accessories, as initially shipped. Refunds cannot be provided for watches returned without prior authorization. All international sales are FINAL.