Question about a Big Crown jubilee bracelet

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Hi all,

Sorry if this isn't the right forum for this and I hope the mods can move this to the right one if it's not.

I have an early 1970 (1st quarter) Jubilee bracelet, oval links non-riveted with the big crown buckle. My question has to do with the end links. I've seen 50's and I've seen 55's but never a 49 like this one. Final solid link is 18.3mm and the buckle is 17mm in width. The end link is 18.7mm at the top side.

Is this for a Date model?

Thanks in advance!