Watch Collection: Curation & Photography Guide

The Navitimer reference 806 is a notable early iteration of Breitling's slide rule chronograph, distinguished by its comprehensive circular slide rule bezel. This reference established many of the visual and functional characteristics that would define the Navitimer line for decades. It represents a foundational piece in the development of the brand's instrument watches, designed for calculations relevant to navigation.

The watch features a 40 mm stainless steel case, housing a manual-wind Venus 178 column-wheel chronograph caliber. This movement provides a power reserve of approximately 45 hours. The dial is black, protected by an acrylic crystal, and the watch offers a water resistance of 30 meters. The bi-directional rotating bezel is integral to the slide rule function.

For collectors, the reference 806 is significant as an early example of the Navitimer, appealing to those interested in the historical progression of aviation-related timepieces. Its production span saw variations in dial printing and sub-dial configurations, which are points of interest for specialized collectors. The model's enduring design has influenced subsequent generations of the Navitimer.

The Grönefeld 1941 Remontoire represents a significant offering from the independent Dutch watchmakers, Bart and Tim Grönefeld, showcasing their technical prowess and commitment to traditional horology. It was introduced as a flagship model, emphasizing precision and a distinctive aesthetic that blends classic watchmaking with contemporary design elements. The timepiece quickly garnered critical acclaim, notably winning the Men's Watch category at the Grand Prix d'Horlogerie de Genève (GPHG) in 2016, solidifying its position within the high-end independent watchmaking landscape.

Central to the 1941 Remontoire is its constant force mechanism, a remontoire d'égalité, visible at 9 o'clock on the dial. This system ensures a consistent supply of torque to the escapement, enhancing timekeeping accuracy by mitigating the diminishing force of the mainspring as it unwinds. The in-house developed Caliber G-05 features a 36-hour power reserve and operates at a frequency of 21,600 vibrations per hour (3 Hz). The movement is meticulously finished with polished bevels, frosted surfaces, and gold chatons, reflecting haute horlogerie standards. The case measures 39.5mm in diameter and 10.5mm in thickness, initially offered in white gold and rose gold, with later iterations including stainless steel.

For collectors, the Grönefeld 1941 Remontoire is highly regarded for its technical innovation, exceptional finishing, and the artisanal integrity of its creators. The limited production numbers and the personal connection of the Grönefeld brothers to their craft, rooted in generations of clock-keeping, add to its desirability. Early white gold models with salmon dials are particularly sought after, as are the later stainless steel versions featuring guilloché dials crafted by Kari Voutilainen and enamel accents, which represent a collaboration between esteemed independent watchmakers.