Opinion Which of these 3 for my wrist? Explorer 1 36m, 4m or Milgauss

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I own the 36mm Explorer 124270. I m so used to 40mm + watches that I’m still getting used to the smaller size. Am I just being insecure about it being small, or does it look ? Otherwise today I went into a dealer today and have an opportunity to trade up to a line new 40mm Explorer 1 or add some money and get the milgauss, but then I’d be into a whole different watch altogether.