1940s Rolex Bubble Back “Semi Unique” 31mm Stainless Steel
Early 1940s Rolex Bubbleback ss popular semi-unique dial with a very rare sub-second. This model is equipped with a sub-second movement, Cal. 620, which is very rare in the semi-unique dials where center-second models are predominantly used. The unique design of the sub-second model and the ageing of the texture are wonderfully appealing, and the old two-piece case with a precious mid-crown is a product with a period look.
|Model name||Bubble Back|
|Year of Manufacture||1940's|
|Case type||Screw back water proof|
|Type of Indices||Luminous|
|Belt||Non-original, 17mm lug width|
|Other details||Case: minor scratches and ageing, but retains enough of the original shape and volume.
Dial: slight ageing, but retains the black mirror shine and original luminescent paint.
Movement: no winding or screwing problems. Accuracy is about 40 seconds per day.