G-Shock MRG-D5000 Blue Sapphire
Casio's most expensive watch ever, with a sapphire case joined without screws in the style of Japanese timber framing. Edition of 20.
Buy from Casio / $80,000
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Patek Philippe 5978P Chronograph
Patek's first hand-wound chronograph with an instantaneous perpetual calendar, cased in platinum. $337,585.