42mm. Diameter
The Seamaster 300 was a “professional” watch that met the challenges of the deep-sea. The design featured a spring device in the crown assembly that became tighter as pressure built during a dive, creating more waterproof capability.
The earliest examples featured the caliber 501, with the reference CK2913 (see previous lot). The caliber 552 was released in 1960 and it is from this period that the present watch was produced. The reference 16524 and 16624 are similar with 42mm cases, but the 16524 model does not have a date. These later references were the choice for the British military and they are often found at auction with the requisite military specs; “T” logo on the dial, welded lugs and military engravings to the case back. Some examples were not used and they have become very popular in the mark.
The present civilian example is in lovely condition with a nicely preserved dial. The dial features an oversized triangular numeral at the 12 o’clock, giving the watch its nickname “Big Triangle”. The watch is made more desirable by the luminescent Bakelite bezel.