Here are just a few of the MKII "Yao Mods"
I have done.
(You can see MKII (Bill Yao) custom parts here: MKIIWatches)

SKX007, Type II day/date dial, Type I hand set with red
tip second, Aluminum chapter ring
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SKX781, 300 MOD day/date dial, Plongeur hand set with orange
minute, Aluminum chapter ring
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SKX009, Original dial, Sword hand set with red tip second,
GMT bezel/rotating ring insert
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SKX007, Type II day/date dial, Sword hand set with box second,
Aluminum chapter ring
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SKX779, 300 MOD day/date dial, Sword hand set with red tip
second, Aluminum chapter ring
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SKX009, 300 MOD day/date dial, Plongeur hand set with orange
minute, Aluminum chapter ring
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SKX007, 300 MOD date dial, Sword hand set
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SKX781, Type II dya/date dial, Type I hand set with orange
minute, Aluminum chapter ring
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SKX007, Type II day/date dial, Type I hand set with orange
minute, Custom black minute chapter ring (chapter ring not
MKII, I make these)
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SKX007 with SKX171 rotating ring/bezel, Plongeur day/date
dial, Sword hand set with red tip second, Aluminum chapter
ring
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SKX779, Plongeur day/date dial, Sword hand set with red
tip second, Aluminum chapter ring
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SKX011J, 300 MOD day/date dial, Plongeur hand set with orange
minute, Aluminum chapter ring
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SKX007, Orange SAT dial, silver Sword hand set, aluminum
chapter ring, stainless steel GMT insert
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