A Benrus Mark IV Nautilus complete with its boxes and papers! It contains the LIP R148 and probably dates from early-to-mid 1960s. Cost $125 when new... which in 2008 money is equal to $835.

The last photograph below of the movement is a little interesting. It shows the original obsolete gold coloured battery still in the watch as well as the very early battery clamps that the LIPs first used.

Benrus Mark IV Nautilus Box

Benrus Mark IV Nautilus Box

Benrus Mark IV Nautilus Box

Benrus Mark IV Nautilus; Gold Plate; 36mm incl. crown; LIP R148; 1965

Benrus Mark IV Nautilus; LIP R148