Triangular Silver Masonic Watch

An early 20^th Century Swiss lever Masonic watch with mother of pearl dial in a triangular silver case.  Circular keyless nickelled bar movement with going barrel.  Plain cock with polished steel regulator.  Uncut balance with blue steel spiral hairspring.  Club foot lever escapement.  Triangular mother of pearl dial with polychrome Masonic symbols in place of the numerals.  Blue steel hands.  Silver case with decoration of a chain around the bezel, a circular ruby red stone below the pendant.  The back, which is hinged to form an easel stand, is chased and engraved with a temple and many other Masonic symbols.  The edge of the case also decorated with further masonic symbols.