A. Ericsson, St. Petersburg, Movement No. 471, Case No. 6720, 63 mm, 242 g, circa 1898

A very fine deck-chronometer with 30h power reserve indicator and extra heavy case from F. Thoms
Case: silver, polished, tiered, gold hinges. Dial: enamel, radial Roman hours, auxiliary seconds, blued spade hands. Movm.: full plate movement, ébauche: V. Kullberg, frosted, gilt, chatoned, chain/fusee, case maker's punch mark "FT" (Frederick Thoms), numbered, signed, spring detent escapement according to Thomas Earnshaw, heavy gold screw chronometer balance, freesprung blued helical balance spring, chatoned diamond endstone on balance.