Two-day Russian marine chronometer in excellent condition. № 16641, signed and numbered. Produced by The First Moscow Factory. Case: two-body Mahogany box- on outer Transport- Mahogany case, on inner- tier Mahogany box with a glass-window, brass handles. Dial: Silvered, numbered with 56 hours power reserve indication. Movement: highly qualitative poljot brass movement № 16641 with spring detent escapement, Guillaume balance. In excellent working condition. Dimensions of the box: 24 x 24.7 x 24.7 cm.