Series X, No. 500430 15-jewel J-size elaborately damascened nickel ¾ plate movement adjusted to temperature and 6 positions, jewels in raised gold settings, straight line lever with moustache counterpoise, bimetallic balance, blued flat spring, micrometer regulator, stem wound and set, signed black enamel dial, minute ring enclosing arabic chapters, subsidiary seconds, gold hands set with rose cut diamonds, monogramed H. N. Lockwood snap back case
