Manufacturer Seiko Caliber Number 4R34, 4R34A Movement Type Automatic Diameter 27.4mm (casing 27mm) Jewels 24 Vibrations Per Hour 21,600 bph...
4R34
Manufacturer Seiko Instruments (SII), Time Module (TMI) Caliber Number NH34, NH34A Movement Type Automatic Lignes 12”’ Diameter 27.4mm (29.36mm w/...
Recent Comments
HI' EVERY ONE': HOW TO ADJUST THE MOVEMENT/ ADVANCED OR RETARD AT THE MAIN SPRING(…
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The other issue is that they went with a rotor mechanism that only winds in…