Advice on cool sport watch on brown leather

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Good day, all.

I'm looking for a new sport watch that has an INTEGRATED brown leather (or croc) strap. By integrated I mean that there is no gap between the strap and the case, as in the AP Safari, Rolex Daytona on leather and new Speedmaster 9300 on leather. Goal is to complete the cool, relaxed look that would work with a cool brown leather belt and shoes.

Case size should be 40-44 mm. OK with vintage, but needs to be high quality.

Photos would be very helpful.

Other watches in my collection include Daytona WG meteorite dial on black leather, GMT Pepsi, DSSD, SeaDweller, 14060 2-liner, SS YM, white dial EXP II, IWC Aquatimer on rubber, Omega PO on rubber.

Thanks very much!