The 4R series was used by Seiko in Seiko watches. Perfect for Seiko watch mods.
Seiko 4R36 (NH36) Automatic Watch Movement - N.O.S - WORKING - Fits 4R35
Plexiglas Crystal Fits Seiko 7005-2000 Automatic Watch
GENUINE SEIKO NH72 NH72A AUTOMATIC WATCH MOVEMENT MECHANICAL SKELETON 24 JEWELS
Original Seiko NH37 / NH37A Automatic Watch Movement - Brand New
Seiko 4R35 (NH35) Automatic Watch Movement – N.O.S - WORKING
Green+White Luminous Streel Watch Dial For Seiko NH35 NH35A Automatic Movement f
