DATE: Victorian, c.1870

An original mid Victorian gold perpetual calendar in full working order and modelled in 15 karat gold. One side indicates the total hours of daylight/night-time in any given month, as well as the sunrise and sunset times (roughly, obviously), and the other gives the wearer day/date information (swipe to see). It's set with a single turquoise cabochon in the centre, and states that the design was "registered June 14 1862". Will keep working in perpetuity, or at least until the current calendar system is upgraded/replaced.

STONES 

Turquoise cabochon

MEASUREMENTS 

2.5 x 2.2cm

WEIGHT 

6.0g

MARKS 

No marks present, tests as 15k gold

CONDITION 

Very good, light wear commensurate with age