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Regal
New watch day for me today; picked it up from the post office on the way into work.
It's a Seiko Elnix (0703-7020) from 1973. It's the last of Seiko's transistorised movements (a precursor to quartz) so employs a balance wheel like a mechanical watch but has a coil and a double stacked balance wheel with magnets attached, generating current when it swings back and forth:
This means the seconds sweep like a normal mechanical watch at 28,800bph. It's sort of a super early version of the thought process used in the spring drive watches.
It's got a lovely weaved etch on the dial as well as a cool raised Elnix logo and super seventies angular case sides.