| A 20th Century Swiss lever by Ditishiem with patent compensation balance and power reserve indication in a slim silver open face case. Keyless nickelled bar movement with going barrel. Plain cock with polished steel rack and pinion micrometer regulator. Patent uncut compensation
balance with two small auxiliary affixes on the rim, Elinvar overcoil hairspring. Gold set jewelling and train wheels, club foot lever escapement. Signed white enamel dial with subsidiaries for power reserve and seconds, Roman numerals, blue steel hands. Plain silver open face case, silver cuvette, maker's mark "ALF" in a rectangle.
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