Guys who are on time with thin little watches can be tough too! That is, according to Hamilton's 1960s advertisement for the not so tough sounding 'Thin-o-matic' collection.
It's actually an understated but cool series of vintage watches from the fifties & sixties featuring the worlds first automatic micro-rotor movement by Buren. A breakthrough innovation during the evolution of thinner self-winding mechanical movements.
with finned case and two-tone dial
Available in both styles from Rene Rondeau --> Link
With bulleted markers
Photos via Capturing Time & JimH
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