Here's something different for Omegaforums. I did a quick search and didn't find another one that has been listed here. For sale is a 1975 Citizen "Challenge Diver" ref 62-6198 in good overall condition. The case is approximately 40mm, with 20mm between the lugs. This is a great rugged diver that is a pleasure to wear. I assume that most readers will be familiar with this reference so I won't go into great detail. There is also plenty of info on the internet, including a writeup at Fratello (https://www.fratellowatches.com/vintage-review-citizen-62-6198-challenge-diver/#gref).

The watch shows consistent signs of age, but nothing distracting, and the condition is much better than average, in my experience. The dial is glossy and the mineral glass crystal is unblemished. The watch appears to be all original with the correct bezel, dial, and date-wheel for this reference. Please use the photos to judge condition for yourself, and ask questions if in doubt. It was a bit difficult to avoid reflections, but I tried to capture photos from various angles in different types of lighting, so please look through all the photos. The watch has not been serviced in my possession, but it is winding, setting, and running properly. The crown screws down securely, which can sometimes be an issue with these models. It's not currently on a strap, but I can add a rubber strap for a small additional cost.

I have a couple of other Challenge Divers I would sell, including a well-worn but rare B52806 (the export version of the first Challenge Diver, with the unique spear-fisher case-back) and a pristine 52-0110 with original H-link bracelet. Both would be a bit more expensive than this one.

My asking price is $550 USD by PP F&F, Zelle, bank wire, or other fee-free electronic payment for this unique example. The watch and I are in the US (Colorado). Shipping included within the US.

Links to my selling and buying feedback are below, and I'm happy to share personal information by direct message. If anyone thinks I have made an error or omission in this listing, please send me a direct message, and I will happily make any necessary correction.

https://omegaforums.net/threads/first-class-experience-with-dan-s.120416/
https://omegaforums.net/threads/dan-s-is-a-great-seller.78044/
https://omegaforums.net/threads/dan-s-is-a-great-seller.79576/
https://omegaforums.net/threads/dan-s-rock-solid-buyer.80126/
https://omegaforums.net/threads/dan-s-is-a-pleasure-to-do-business-with.80035/
https://forums.watchuseek.com/f63/great-transaction-dan-s-4897643.html
https://omegaforums.net/threads/dan-s-is-a-top-notch-seller.102116/
https://omegaforums.net/threads/dan-s-is-a-first-rate-seller.102652/
https://omegaforums.net/threads/dan-s-a-great-seller.108035/#post-1418700
https://omegaforums.net/threads/dan-s-is-a-highly-recommended-buyer.109353/#post-1439193
https://omegaforums.net/threads/dan-s-is-a-great-seller.140865/
https://omegaforums.net/threads/dan-s-is-a-great-seller.150946/
https://omegaforums.net/threads/dan-s-is-a-great-seller.151063/
https://omegaforums.net/threads/excellent-transaction-with-dan-s.152043/#post-2071625
https://omegaforums.net/threads/dans-is-a-great-seller.153443/
https://omegaforums.net/threads/dan-s-is-a-great-seller.156359/
https://omegaforums.net/threads/excellent-transaction-with-dan-s.156775/
https://omegaforums.net/threads/great-experience-purchasing-from-dan-s.170206/#post-2317053