Apollo 8 straps

[Bruin20]

Have been wearing the Apollo 8 on the strap it came with up until recently when I purchased the black canvas strap with deployant that comes on the dark side of the moon black black.

My issue is that I can’t get the watch and strap under my shirt cuff now with all the added bulk and I’m honestly not that big of a fan of the original strap it came with. The yellow stitching is a bit much and the buckle and holes are very widely spaced so it’s either super lose or way too tight.

Any good recommendations for a lower profile calf skin strap? Having trouble finding a 21mm option.