Oris Aquis Date 43.5mm 0173377304135

The Oris Aquis Date 43.5mm (reference 01 733 7730 4135) is a Swiss automatic dive watch with a multi-piece stainless steel case, a unidirectional black ceramic bezel and 300 m of water resistance, powered by the Oris Calibre 733 based on the Sellita SW 200-1. The most widely listed configuration of this reference is the blue gradient dial on a stainless steel bracelet (suffix -07 8 24 05PEB). It sits within the Aquis dive line that Oris redesigned in 2017 and revised again in 2024.

Reference 01 733 7730 4135 belongs to the generation of the Oris Aquis Date launched in 2017. According to monochrome-watches, Oris updated the collection with a case that grew to 43.50 mm from the prior 43 mm, thinner horns and bracelet for a sleeker profile, redesigned hands with a bolder angular form, refined crown guards and an easier-to-grip unidirectional bezel; the update also added the word "Aquis" to the dial. The revised line was expected in June 2017.

At launch the 2017 Aquis Date collection was priced starting at 1,750 Swiss francs on a rubber or leather strap and 1,950 Swiss francs on the stainless steel bracelet, per monochrome-watches. The collection debuted with three dial options: gradient blue (the configuration of this bracelet reference), black with silver indices, and black with orange indices.

Oris subsequently broadened the size range around the same case family. Monochrome-watches reports that a 39.5 mm version arrived in 2018 and a 41.5 mm model was added in February 2020, positioned between the 39.5 mm and 43.5 mm sizes. All of these share the Oris Calibre 733 based on the Sellita SW 200-1.

The Aquis Date 43.5mm runs the Oris Calibre 733, an automatic movement based on the Sellita SW 200-1. Monochrome-watches lists the movement specifications as a 25.60 mm diameter, 26 jewels and a 28,800 vibrations-per-hour (4 Hz) beat rate. Functions are centre hours, minutes and seconds plus an instantaneous date at 6 o'clock with a quick date corrector and a stop-seconds (hacking) function, as stated on the official Oris product page.

Power-reserve figures differ by source. The official Oris US product page for this reference states 41 hours, and The Wind-Up's review also cites a 41-hour reserve. Several retailer and specification listings, including PrestigeTime and monochrome-watches' 2020 article, quote 38 hours, which reflects the older base-movement rating for the Sellita SW 200-1. Both figures trace to the same Calibre 733 base.

The Wind-Up characterises the movement as "reliable, serviceable, and not likely to win awards for innovation," comparing it to "the Ford Focus of movements." That framing captures the workhorse positioning of the SW 200-1-based calibre used across the standard Aquis Date range.

In The Wind-Up's review of the Aquis Date, the reviewer reports that the watch "hugs the wrist like it knows you well" despite its size, and on a 7-inch wrist found it "a perfect fit when wearing a t-shirt." The same review notes the watch's height as a drawback under clothing: "My main struggle is to wear this watch under a sleeve. It sits tall and proud off my wrist letting jackets and shirts know that there is no place for them near my hand!"

The review measures the case at roughly 13 mm thick and pairs the 43.5 mm diameter with a ceramic unidirectional bezel that the reviewer describes as a "120-click" action that is "firm, precise, oddly satisfying." Lume is Super-LumiNova BGW9, which the reviewer says produces "a bright blue glow that lasts longer than expected."

Teddy Baldassarre's buyer's guide notes that later Aquis Date revisions reworked the lugs for a better wrist fit and added tapered crown protectors, changes aimed at improving how the chunky steel case sits on smaller wrists.

Beyond the 43.5 mm reference, the standard Calibre 733 Aquis Date is offered in 39.5 mm and 41.5 mm cases. Monochrome-watches lists lug (bracelet) widths of 24 mm for the 43.5 mm, 22 mm for the 41.5 mm and 21 mm for the 39.5 mm. The 2017 collection that this reference belongs to launched with gradient blue, black-with-silver and black-with-orange dials.

Oris revised the Aquis Date in 2024. Monochrome-watches reports the update thinned the 43.5 mm case, citing 13.1 mm on the new version versus 13.7 mm on the old, achieved by redistributing thickness between the central case and caseback; the 41.5 mm went from 13.3 mm to 12.9 mm. Other changes include thinner, more tapered lugs, smaller and more tapered crown guards, reshaped shield-like hour markers, updated hands with a new luminous insert, a colour-matched date disc, and a bracelet with a broader central brushed link. Published thickness figures for the pre-2024 43.5 mm reference vary between sources, with PrestigeTime listing 12.60 mm.

The line also splits by movement. Monochrome-watches notes that a top-tier 43.5 mm Aquis Date uses the in-house Calibre 400 with a five-day power reserve and gains a patented quick-change strap system and quick-adjust clasp, whereas the reference here uses the Calibre 733. The Calibre 400 43.5 mm was quoted at EUR 3,700 on bracelet against EUR 2,400 for the Calibre 733 43.5 mm in the 2024 update.

The Oris Aquis Date is sold through Oris authorized dealers and the brand's own site. The official Oris US product page lists reference 01 733 7730 4135-07 8 24 05PEB (blue dial, steel bracelet) at USD 2,600.00, and the US dealer PrestigeTime lists the same reference at a retail price of USD 2,600.00. At its 2017 debut the collection started at 1,950 Swiss francs on the steel bracelet, per monochrome-watches.

Buyers cross-shopping within the line should note the movement split: the Calibre 733 references such as this one sit below the in-house Calibre 400 versions, which monochrome-watches quoted at EUR 3,700 on bracelet in 2024 (versus EUR 2,400 for the Calibre 733 43.5 mm) and which add a five-day power reserve plus quick-change strap and quick-adjust clasp systems.

The official Oris page states a two-year warranty that can be extended to three or more years through the MyOris registration program. Teddy Baldassarre's buyer's guide positions the Aquis Date among value-oriented Swiss divers, noting the later revisions' bracelet quick-adjust clasp and reworked case as points to weigh when choosing between generations.