Description: A very fine and rare split seconds chronograph with nonius hand and constant force - in its original shoulder bag Case: steel, polished, steel cuvette, screwed on. Dial: silvered, Arabic numerals, 30 min. counter, auxiliary seconds, Vernier scale chronograph hand, baton hands. Movm.: 2/3 plate movement, rhodium plated, "fausses côtes" decoration, finest matted, bevelled chronograph steel parts, ratchet wheel, mirror polished screws, ground and bevelled double hand tong with polished bevelling, separate ratchet wheel for split seconds chronograph, going train with constant force, screw compensation balance, balance spring with inner terminal curve, index spring fine adjusting device, shock protection for balance.
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