On the dial it says self winding. inside it said stainless back and 10k plated gold.
In reply to Amazing how fast things by Geoff Baker
..actually Gents let's look at this one again.
The colored ad above (displayed on page one, dated 1953) for the "two-tone" Dialed 'SPENCER' is not showing a two-tone Dial at all, it's showing a quadrant cut gabled Crystal as the 1952 Black and White ad. below shows with greater detail.
1952 'SPENCER'
admin,
I would suggest this design follows the same path as the heavily 'debated' circular 1950 'DUO-WIND' vs 1951 'THAYER'. http://www.mybulova.com/watches/1950-duo-wind-1088
The Movement inside of these timepieces being the key, a 'DUO-WIND' will have a bi-directionally winding Movement, the 10CSC found inside the subject I believe winds in only one direction.
In reply to admin, I would suggest this by FifthAvenueRes…
Hello, I cannot vouch for the model differences you are talking about, but I have a 1953 Clipper and this contains the 10 csc mentioned above, and I can vouch for it being a bi-directional winding movement.
Can I make the suggestion that it may be the ability to wind both by hand and by wrist movement, being the reason for the duo-wind name?
Tony.