Blancpain 5100 Fifty Fathoms Bathyscaphe Steel Blue Dial

The Blancpain Fifty Fathoms Bathyscaphe reference 5100‑1140‑O52A is a refined 38 mm stainless steel dive watch that marries the brand’s pioneering heritage with contemporary technical prowess. Powered by the in‑house automatic Caliber 1150, this model delivers an impressive 100‑hour power reserve and features a silicon balance spring and secured movement system for enhanced precision and durability. Its sunburst blue dial, paired with a unidirectional satin‑brushed steel bezel with ceramic insert and Liquidmetal hour‑markers, offers both legibility and aesthetic depth. Water‑resistant to 300 m (30 bar), it upholds the Fifty Fathoms’ legacy of robust underwater performance. The case thickness of approximately 10.8 mm ensures a sleek profile for a modern diver. Introduced in the early 2020s, this Bathyscaphe variant is notable for its compact size relative to traditional Fifty Fathoms models, appealing to collectors seeking a versatile yet historically significant piece. The sail‑canvas strap reinforces its sporty character while maintaining refined elegance. With its blend of horological innovation, heritage dive credentials, and wearable dimensions, the 5100‑1140‑O52A occupies a compelling niche among discerning enthusiasts. Like New with Blancpain box and papers dated 2020.