Steel Bracelet: Very Good. Congratulations, you could soon be the owner of this watch. Reference ST 105.003 is the last of the Speedmasters with straight lugs, also known as the pre-Professional. Despite having less developed technical features than its contemporary, the Professional ST 105.012 (lack of protection for the pushers and crown), the ST 105.003 remained unchanged until the end of its production run in early 1969.
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