Seiko 3102 Movement Details

Seiko caliber 3102 is an electronic watch movement. Production started around 1969.
Search eBay for watches with this movement.

Sub-brands: 31EL
Day / date?Date only
GMT / world time?No
Chronograph?No
Rate:21,600 bph
Development division:Suwa (Nagano)
Notes:Unlike later electronic watches, uses contacts rather than a transistor.

Articles