Genuine Omega® oscillating weight, part number 1026, base cal. 670 (see all calibres in description) Generic Crystals to fit Ricoh one at 6 o'clock position

one at 6 o'clock position (second hand) and one at 10 o'clock position (30 minute timer)

Using the pair of levers

4" Deep Sawframe Lightweight and perfectly balanced sawframe

and the minute hand has a square hole 2

Genuine Omega® oscillating weight, part number 1026, base cal. 670 (see all calibres in description) Generic Crystals to fit Ricoh one at 6 o'clock positionGenuine Omega oscillating weight, part number 1026 Fits calibres: Omega 670 Omega 671 Omega 672 sweep Omega 672 no seconds Omega 680 Omega 681 Omega 682 * Perrin Supply Ltd is independent of and not affiliated with or sponsored by Omega. Omega warranty does not apply to parts supplied by Perrin Supply Ltd.