The Rolex 16603 isn't a model you'll find officially listed on the Rolex website. The model number you provided, m126603-0001, refers to the modern Sea-Dweller in Oystersteel and yellow gold (the current iteration). However, the query focuses on the 16603, a reference which represents a significant and sought-after chapter in Rolex's diving watch history. While not a direct descendant of the modern 126603, understanding the 16603 requires examining its predecessor, the Rolex 16600, and tracing the lineage of Rolex's iconic Sea-Dweller. This article will explore the Rolex 16603 indirectly, by focusing on the crucial 16600, its specifications, history, and market value, providing context for appreciating the evolution leading to the two-tone models that followed.
Understanding the Predecessor: The Rolex 16600
Before delving into the nuances of the implied two-tone variations, we must first understand the Rolex 16600, the foundational model upon which the 16603's heritage rests. The 16600 represents a significant milestone in the Sea-Dweller's history, marking a transition period in its design and functionality.
Rolex 16600 Specs: The Rolex 16600 boasted a robust 40mm Oyster case crafted from stainless steel, a significant size increase from its predecessors. This larger case housed a self-winding mechanical movement, typically the calibre 3035, known for its reliability and accuracy. Its unidirectional rotating bezel, crucial for safe diving, featured a graduated 60-minute scale, allowing divers to monitor their ascent time. The watch's water resistance was rated to an impressive 1220 meters (4000 feet), reflecting its professional diving capabilities. The dial, typically black, featured luminous hour markers and hands for optimal legibility underwater. The crystal was made of scratch-resistant sapphire, further enhancing its durability.
Rolex 16600 Production Years: The Rolex 16600 was produced over several years, with exact production dates varying slightly depending on the specific features and dial variations. Generally, its production spanned a significant period, solidifying its place as a popular and enduring model. Precise year ranges vary based on source and specific dial configurations. However, it's safe to say the 16600 was in production for a substantial portion of the late 20th century.
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