The replica royal oak offshore 26170ST is the chronograph that set the template. As the direct predecessor to the 26470 and 26400 lines, this 42mm steel piece established the format that every Offshore chrono since has followed. Black dial against polished crown guards, mounted on alligator leather — the combination reads as restrained for an Offshore, which is precisely why collectors keep circling back to it.
The 42mm Chronograph That Started a Lineage
Before the 26470 refined things and the 26400 went larger, the 26170 proved that AP could build a chronograph Offshore without losing the plot. The case proportions sit well on most wrists — 42mm across with 14.4mm of thickness is substantial but never clumsy. Crown guards frame the pushers and crown with the angular geometry that separates an Offshore from everything else in the catalogue.
The Mega Tapisserie pattern on the black dial catches light in sharp geometric lines. Sub-registers at 12 and 6 handle 30-minute and 12-hour totals, with a running seconds counter at 9. The date window at 3 sits flush with the dial surface. Nothing about the layout wastes space or attention.
Wearing it on the newer 26470ST on leather back to back, you notice how similar the DNA runs. The 26170 is the original argument.
Leather Strap and Daily Wear
Black alligator leather with an AP folding clasp gives this replica royal oak offshore 26170ST a dressier posture than its rubber-strapped siblings. The strap tapers from the lugs and sits flat against the wrist without the stiffness you sometimes get from thick hides. It breaks in within a week of regular wear.
The Cal. 3126/3840 inside runs at 21,600 vibrations per hour with a 50-hour power reserve. Wind it Saturday morning, set it down Sunday night, and it will still be running Monday. Fifty-nine jewels handle the chronograph complication without adding unnecessary drag on the mainspring.
At 100 meters of water resistance, the caseback and crown seal properly. This is not a dive watch, but it handles rain, washing hands, and the occasional pool without concern. For shipping details on this piece, check our delivery page.
See all models in the Offshore collection.
| Reference | 26170ST.OO.D101CR.01 |
| Case | 42mm · Stainless steel |
| Bezel | Octagonal · 8 hexagonal screws |
| Dial | Black · Mega Tapisserie |
| Crystal | Sapphire · AR coating |
| Caliber | 3126/3840 · Automatic · 50h reserve |
| Strap | Black alligator leather · Pin buckle |
| Buckle | Stainless steel · AP folding clasp |
| Water | 100m / 10 ATM |
| Functions | Hours, minutes, seconds, chronograph, date |
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