Description
ORIENT vintage mechanical watch
MADE IN JAPAN
“Orient” (オリエント) draws its name from the Latin word “Oriens,” meaning “the East” or “the rising sun.”
The name reflects the company’s Japanese origins and its aspiration to bring the finest Eastern craftsmanship to the world stage.
Founded in 1950 as Orient Watch Company (東方時計株式会社) in Tokyo, the brand quickly became Japan’s third-largest watchmaker alongside Seiko and Citizen. Orient distinguished itself with innovative in-house automatic movements, bold designs, and exceptional value — building every caliber in its own factory rather than relying on outside suppliers.
The brand name literally connects to the idea of Eastern excellence — a fitting identity for a company whose mechanical watches have earned devoted collectors worldwide.
About the Chronoace Line
🕰️ The Orient Chronoace was Orient’s flagship automatic line of the late 1960s and early 1970s, introduced in 1969 to replace the earlier caliber-49 “AAA” models and usher in a new era of bolder case designs, materials, and dial colors that would come to define the brand through the 1970s.
The name is rendered on the dial as the distinctive applied “cA” monogram, and it marked Orient’s ambition for the line: a well-finished, higher-jewel-count automatic aimed at buyers who wanted something a cut above an everyday watch. Chronoace models ran on Orient’s in-house caliber 42 automatic (18,000 bph), offered in 21-, 23-, 25- and even 27-jewel grades, with the jewel count printed proudly on the dial.
Where the Chronoace really stood out was design. Over its short production run Orient used the line as a showcase for experimentation — oval, cushion, round and angular geometric cases; textured and sunburst dials in blues, greens, greys and silvers; and unusual materials like stone and mother-of-pearl dials on the top variants. Day-date models carried a bilingual day wheel that switched between Japanese kanji and Western lettering, a hallmark of Japanese watches built for both the home and export markets.
Today the Chronoace is one of the more collectible vintage Orient lines precisely because of that variety and ambition: genuine in-house Japanese automatic engineering, distinctive early-1970s styling, and — for the more colorful dials especially — a character that’s hard to find at anything like the same price from the era’s Swiss makers.
About This Watch
This is an Orient Chronoace King-Diver “Depth Gauge” (ref. CB429-16240) — not an ordinary dive watch, but one of the more inventive things Orient built. Introduced in 1970 at the top of the Chronoace line, it carries a working mechanical depth gauge with no electronics of any kind.
Look at the outer scale on the dial: 0, 1, 2, 3, 4, 6, 8, 10, 12, 15, 20, 25, 30, 40, 50, 60, 75, 100. The spacing is deliberately uneven, because it is a pressure scale, not a time scale. A capillary tube runs around the rim of the dial with a water inlet at 3 o’clock, right beside the 0 index. As the diver descends, water is forced into the tube and compresses the column of air trapped inside it; the water front creeps around the scale and reads depth directly in metres, to 100. It obeys Boyle’s law, which is why the numbers crowd together at the deep end. Fifty years on, none of that makes it dive equipment: the original 100 m rating cannot be guaranteed on any vintage watch, and this one has not been pressure-tested — see the Condition Report below. The orange batons on the inner ring serve the same purpose by a cruder route — different colours drop out of the spectrum at different depths, so the batons fade in sequence as you go down.
The movement is Orient’s in-house caliber 42950, 23 jewels, automatic, beating at 18,000 bph. It is the special depth-gauge variant of the caliber, built without the date quick-set pusher that sits at 2 o’clock on the dress Chronoace models — that pusher was a hole in the case, and Orient deleted it to keep the water out.
The rest is pure turn-of-the-1970s Japan: a brushed and polished stainless steel cushion case, a black rotating dive bezel with a 60-minute scale, an acrylic crystal, the applied “cA” monogram at 6 o’clock, and a day-date window at 3 with a red day disc. The case-back carries no reference or serial number — it is stamped only ALL STAINLESS STEEL, WATER PROOF and ANTI-SHOCK around an engraved Orient crown medallion. The watch arrives on a vintage Bambi-signed stainless steel bracelet, a period-correct Japanese bracelet rather than an Orient-signed original.
Technical Specifications
- Brand: Orient
- Line: Chronoace King-Diver “Depth Gauge”
- Case-back Number: None engraved — the case-back is marked ALL STAINLESS STEEL, WATER PROOF and ANTI-SHOCK around the Orient crown medallion
- Movement: Orient in-house caliber 42950, 23 jewels, automatic (self-winding), 18,000 bph — the depth-gauge variant, built without the 2 o’clock date quick-set pusher
- Depth Gauge: Mechanical capillary tube, 0–100 m, water inlet at 3 o’clock
- Production Date: Introduced 1970; Chronoace King-Diver models produced circa 1969–1971
- Case Material: Stainless steel
- Case Diameter: Approx. 42 mm (excluding crown)
- Dial: Deep blue with capillary depth scale to 100 m and inner silver-white track with orange colour-loss markers; day-date at 3 o’clock with red day disc
- Crystal: Acrylic
- Bezel: Black rotating dive bezel with 60-minute scale
- Case-back: Stainless steel, engraved Orient crown medallion
- Country of Manufacture: Japan
Condition Report
The dial is excellent: the blue is deep and even, the depth scale and inner track are crisply printed, and there is no fading, staining or lifting. The hands and markers retain their original aged lume, now a soft cream. The orange colour-loss batons are unfaded.
The capillary channel around the dial rim is intact and clear. Please note that the depth gauge has not been pressure-tested, and this watch has not been tested for water resistance — as with any fifty-year-old dive watch, it should be treated as a dry-land piece and not submerged. It is sold as a mechanically serviced, running collector’s watch, not as working dive equipment.
The acrylic crystal shows light surface scratches consistent with age and normal wear. The black bezel insert is intact with a few small nicks around its edge, and the bezel rotates.
The stainless steel case has been polished and shows light scratches and small dings across the case sides and lugs — honest wear for a watch of this age, with the case facets still well defined. The engraved medallion on the case-back remains clearly legible.
Day and date both advance correctly, and the day disc is English. The watch comes on a vintage Bambi-signed stainless steel bracelet, which shows scratching on the clasp.
This watch has recently been serviced by a professional watchmaker and keeps good time.
Comes complete with vintage steel bracelet*.
(*)Note: Stock bracelets are often shortened by previous owners and may not fit you(see bracelet size in the product images). We recommend adding a new Orient lug width matched leather strap with your order.
This watch ships from 🇺🇦 Ukraine with tracking number
Why Collectors Want This Watch Today
Most vintage Japanese divers are variations on a theme. This one is not. A mechanical depth gauge driven by nothing but a tube of trapped air and Boyle’s law is the kind of idea a company only tries when it is confident and a little bit reckless, and Orient was both at the turn of the 1970s. Dive computers killed the concept off in the 1980s, and nothing quite like it has been built since.
That makes this a genuinely hard watch to find, and we do not say that lightly. Ordinary Chronoace King-Divers turn up regularly and trade modestly. The Depth Gauge does not: it was a short-run flagship, examples surface infrequently, and the ones that do are often missing the bezel insert, or have a dial spoiled by moisture that got past the capillary inlet. This example has an unfaded blue dial, an intact insert, a clear capillary channel, and a serviced, running caliber 42950.
It is also still a watch you can wear. Forty-two millimetres of cushion steel, a day-date, and a dial with more going on in it than most modern watches manage — with the added pleasure that the busiest thing on it is a working scientific instrument.
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We guarantee the item you receive looks and works exactly as advertised — or your money back.
Lug width matched leather straps: 18mm - 19mm - 20mm
About the watch factory
Orient Watch Company (オリエント時計株式会社, Oriento Tokei kabushiki gaisha), commonly known as Orient, is a Japanese watchmaker founded in 1950 in Tokyo. Orient became Japan’s third-largest watch manufacturer, alongside Seiko and Citizen, and earned a reputation for producing high-quality mechanical watches with in-house movements at accessible prices.
Orient’s greatest distinction in the watch industry has been its commitment to manufacturing its own movements entirely in-house — a practice shared by very few watchmakers worldwide. From the beginning, Orient designed, produced, and assembled every caliber in its own factory, giving the brand complete control over quality and innovation.
Throughout the decades, Orient produced iconic lines including the Weekly Auto (day-date dress watches), King Diver (robust sports watches), Orient Star (premium mechanical pieces), and the modern Kamasu and Bambino series that have introduced a new generation to mechanical watchmaking. The brand’s vintage pieces from the 1960s and 1970s — particularly the AAA-graded models — are increasingly prized by collectors for their distinctive designs, reliable movements, and the sheer quality they delivered at their price point.
In 2009, Orient became a subsidiary of the Seiko Epson Corporation, though it continues to operate as a distinct brand with its own identity and movement production. Today, Orient watches are sold worldwide and remain one of the best values in mechanical watchmaking.
