Explorer II

The Architect

ExpertSep 27, 2026

72

The Reference 226570 represents the current production iteration of the Explorer II lineage, a line whose origin in 1971 positioned it explicitly for spelunkers and polar researchers requiring a fixed 24-hour bezel to distinguish day from night in perpetual darkness. Concordantly, the contemporary execution retains that 24-hour graduated bezel and the distinctive orange GMT hand — elements that connect this reference to its predecessors with unusual fidelity. The dial, available in both matte black and white, maintains a legibility-first orthodoxy that suits the instrument's stated purpose. The applied hour markers and Mercedes handset are executed without error, though without distinction. Vis-à-vis its case design, the 42mm diameter represents an expansion from earlier iterations that some analysts regard as a violation of the Explorer II's original proportion discipline. At 12.9mm of thickness, the case resists disappearing beneath a cuff — a functional concession that undermines wearability for a meaningful segment of wrists. The Caliber 3285 is the axis on which this reference earns its most defensible score: 70 hours of power reserve, Chronergy escapement, and demonstrated positional accuracy constitute a movement of genuine consequence. The value equation, however, is complicated by market realities. At $9,550 MSRP and with grey market premiums persisting, the probability of acquiring this reference at list price without established dealer relationships approaches a figure that disciplines the value assessment considerably.