An an owner of a few vintage Omegas, I am still looking for some choice vintage Longines. I am a total newbie.
Is the Longines Admiral HF a collectible/ desirable watch? I also noticed some of them say automatic on the dial and some do not. The ones that don't are hand wind ?

Thank you

 

The Admiral HF (high frequency) models are not as sought after as the older Admiral models from the early 60's, and Admirals in general take a back seat to most Conquest and Flagship models.

The automatics have the 2nd generation Ultra-Chron movements that were detuned from 36k bph down to 28.8k bph in 1972, designated with caliber numbers of 664x and 665x. They are still in-house Longines movements and have a deserved spot in any Longines collector's box. The manual wind 69x2 series calibers were introduced in 1971. They're also 28.8k bph, with the 6952 and 6972 having a hacking mechanism that lets the second hand run until it hits the 12:00 position, then stops for more accurate timing.

I happen to have an Admiral HF 6952 with a blue dial. Nice wearable watches.

 

Great. Thanx for the info.
I am looking at this watch.
http://www.watch-fanatic.com/marketplace/3-Longines/66-longines-admiral-hf#
Even though it says automatic on the dial, the seller says its a 36k movement. From what I understand from your post, this should be the de tuned movement?

 

There were 36k bph Admiral HF models and that could very well be one. The dial looks original too. I'd like to see a picture of the movement - and I don't understand why it isn't shown since another picture shows the caseback off the case.

 

Movement is still in the case back, its a split stem drop in case.