ROLEX REF. 5100 BETA 21
QUARTZ YELLOW GOLD
Rolex, Quartz, No. 598, Ref. No. 5100.
Made in the 1970s.
Very fine and rare, heavy and large, tonneau-
shaped, center seconds, 18K yellow gold
quartz wristwatch with date and an integral
18K yellow gold Rolex bracelet with concealed
deployant clasp.
Three-body, solid, polished and brushed,
fluted bezel, sapphire crystal with cyclops lens.
Satiné silver with applied yellow gold
baton indexes and luminous dots, outer 1/5th
seconds/minute track, aperture for the date.
Yellow gold baton hands.
Cal. Beta-21, 13 jewels, frequency of the
quartz oscillator: 8192 Hz, reduced to 256 Hz
by the frequency reducer.