davy26
·This is my 816, presented to me for a work achievement when I was a very young man and silly enough to chuck away the box and papers!
The 816 has a six sided case, the back of which screws down, and an armoured plexi glass. The pushers and winding crown are similar to the 806. The dial is the only interchangeable part as the 806 and the 816 use the same Venus 178 movement. The slide rule looks the same but has a different mechanism for rotating the bezel:
The 816 has a six sided case, the back of which screws down, and an armoured plexi glass. The pushers and winding crown are similar to the 806. The dial is the only interchangeable part as the 806 and the 816 use the same Venus 178 movement. The slide rule looks the same but has a different mechanism for rotating the bezel: