Wittnauer serials:
the Longines connection is the key
Wittnauer is the estate-box brand with a famous partner. For most of the twentieth century the name was tied to Longines, same New York distributor, shared advertising, co-branded casebacks, and that relationship, not a serial table, is the key to dating one. No public Wittnauer serial ledger exists; what exists instead is a clean set of branding eras, dateable calibres, and the useful fact that a genuine Longines movement inside carries Longines' own well-documented serial history.
Last reviewed July 2026 · Independent guide · Not affiliated with Wittnauer
The 20-second answer
There is no public Wittnauer serial decoder. Date a Wittnauer by its branding era (Wittnauer alone before the mid-1930s; the Longines-Wittnauer Watch Co. marking from 1936 into the 1970s; 'Wittnauer Genève' styling in the 1990s; Bulova ownership from 2001), by its movement, Wittnauer used its own-stamped Swiss calibres plus A. Schild and similar ebauches with known windows, and, where a watch carries a genuine Longines movement, by Longines' own serial records, which are excellent. The caseback wording alone usually brackets a Wittnauer within a decade.
How to date a Wittnauer watch
The caseback wording does surprising work here; start with it.
Read the corporate wording
'Longines-Wittnauer Watch Co.' on the caseback places the watch in the 1936-to-1970s partnership era; earlier and later wordings bracket the rest.
Identify the movement
Wittnauer-stamped calibres on Swiss ebauches (A. Schild and relatives) have known production windows that set the date floor.
Check for a Longines heart
Some pieces carry genuine Longines calibres, whose serial numbers date precisely through Longines' own records.
Use the case model code
Wittnauer case references match against dated advertising, especially strong for the 1950s-60s professional chronographs.
Place the design era
All-Proof sport models from the 1930s-40s, professional chronographs 1940s-60s, skin divers 1960s, 'Genève' dress styling from the 1990s.
Date the parts separately
Partnership-era service networks mixed parts freely; movement and case must agree before you trust either.
A century beside Longines
Albert Wittnauer, a Swiss immigrant, built the brand inside his family's New York import house in the late nineteenth century, and from early on the firm was also the American agent for Longines. In 1936 the relationship was formalized as the Longines-Wittnauer Watch Co., and for four decades the two names shared advertising, distribution and casebacks, Wittnauer positioned as the accessible companion to Longines' prestige.
That history is the dater's gift: the corporate wording on dial and caseback changed with each era, and 'Longines-Wittnauer' markings bracket a watch between 1936 and the late 1970s at a glance. After the partnership era the brand passed through Westinghouse and other owners, re-emerged with 'Wittnauer Genève' styling in the 1990s, and has been part of Bulova since 2001, each phase visually distinct.
Wittnauer's own catalog was serious in its own right: the All-Proof was one of the early shock-and-water sport watches, its mid-century professional chronographs are genuinely collected, and its 1960s skin divers ride the same wave as their famous contemporaries at a fraction of the price.
Dating by movement: Wittnauer's and the Longines jackpot
Inside most Wittnauers sits a Swiss ebauche, frequently A. Schild and relatives, stamped with Wittnauer's own calibre numbers, and those calibres have documented production windows that set the watch's date floor, the same triangulation that dates a <a href="/guides/benrus-serial-number-lookup/">Benrus</a>. The case model reference, matched against Wittnauer's rich advertising record, narrows the window further, often to a few years for the chronographs.
The jackpot is a Longines-stamped movement. Longines' production ledgers survive and the company's serial records are famously good, a serial on a genuine Longines calibre dates it precisely, and Longines will confirm details from its archives. Where a Wittnauer carries one, the dating question is simply solved; our <a href="/guides/longines-serial-number-lookup/">Longines serial guide</a> covers reading it.
The bare Wittnauer case serial, by contrast, has no public key. As with the other American assemblers, it identifies rather than dates, and the search for a Wittnauer serial decoder ends here so the useful work can begin.
Chronographs, skin divers and what estates actually hold
The Wittnauers worth real attention in an estate box: the mid-century professional chronographs (Valjoux-based, multi-register, increasingly collected and increasingly redialed), the 1960s skin divers whose broad-arrow hands and honest cases draw the same buyers as far pricier contemporaries, and clean All-Proof sport models from the earlier era. Original examples of any of these deserve verification before any sale.
The bulk of estate Wittnauers are mid-century dress watches, honest, well-made, modest: typically $75 to $300 in original condition, with the Longines association lending a small premium over comparable assemblers. As everywhere in vintage, the dial decides: original and evenly aged beats refinished and bright, always.
Partnership-era servicing mixed parts liberally, Longines-Wittnauer service counters handled both brands, so marriages are common and mostly innocent. Date the movement and case separately; agreement confirms the watch, disagreement reprices it.
The 1990s and Bulova eras: reading late Wittnauers
'Wittnauer Genève' on the dial announces the 1990s revival era: quartz-dominated, dressy, and unrelated to the partnership decades except by name. These are honest watches with modest secondary value, and their dating is straightforward, the styling and quartz movements place them immediately.
Bulova-era Wittnauers (2001 onward) are modern products and date themselves by model reference through Bulova's records; they share the caseback conventions of modern <a href="/guides/bulova-serial-number-lookup/">Bulova</a> production.
The practical takeaway for heirs: the wording tells you which Wittnauer you have, and only the pre-1980 eras carry meaningful collector value. Photograph dial, caseback and movement, and a scan will place the era, check the pairing and estimate the market in one pass.
Common mistakes with Wittnauer watches
The Longines association creates most of them.
Pricing a Wittnauer as a Longines
The partnership was real; the brands were tiered. Wittnauer value stands on its own models, chiefly the chronographs and divers.
Ignoring the caseback wording
The corporate name is the fastest date bracket on the watch, and most owners never read it.
Hunting a serial decoder
No public Wittnauer ledger exists. The movement dates the watch; only a genuine Longines calibre inside dates by serial.
Trusting a bright chronograph dial
The professional chronographs are redial magnets. Fonts and register spacing must match documented examples.
Identify and value your watch
Photograph the dial, caseback and movement. An instant read places the era, checks the pairing and flags redials before you price it.
Scan Your WatchFor high-value purchases, we recommend pairing your AI scan with an in-person inspection by a certified watchmaker — in-person inspection remains the gold standard.
Frequently asked questions
Is there a Wittnauer serial number lookup?
No public ledger exists for Wittnauer's own serials. Wittnauers are dated by branding era (the caseback's corporate wording brackets the decade), by movement calibre windows, and, when a genuine Longines-stamped calibre sits inside, by Longines' own excellent serial records, which date such pieces precisely.
What does Longines-Wittnauer mean on my watch?
It reflects the formal partnership era: from 1936 into the late 1970s the two brands shared a New York company, advertising and distribution, and casebacks carried the joint name. As a dating clue it brackets the watch inside that window; as a value clue, remember the brands were tiered, Wittnauer was the accessible line, not a Longines in disguise.
How do I date my Wittnauer watch?
Read the caseback wording first (A. Wittnauer Co., Longines-Wittnauer, Wittnauer Genève and Bulova-era marks each bracket an era), then identify the movement: Wittnauer-stamped Swiss calibres have known windows, and a Longines calibre dates precisely by serial. The case reference matched against dated advertising narrows further, often to a few years.
Are Wittnauer watches valuable?
Most estate pieces are honest $75-to-$300 dress watches. The exceptions: mid-century professional chronographs (four figures when original), 1960s skin divers, and clean All-Proof sport models. Originality rules the price, and the chronographs in particular are redial magnets, so verify before selling or insuring.
Does my Wittnauer have a Longines movement?
Some do, especially partnership-era pieces. Open-caseback photos settle it: a Longines-stamped calibre carries its own serial, dateable through Longines' records. Most Wittnauers instead carry Wittnauer-stamped Swiss ebauches (A. Schild families and similar), which date by calibre window rather than serial.
What is a Wittnauer All-Proof?
Wittnauer's early shock-and-water-resistant sport watch, marketed from the 1930s with famous durability stunts. It is a genuine piece of sport-watch history and among the more collectible non-chronograph Wittnauers, era-bracketed by its styling and the caseback wording.
Who owns Wittnauer now?
Bulova, since 2001 (itself owned by Citizen since 2008). Modern Wittnauers are Bulova-group products that date by model reference; the collector interest concentrates in the pre-1980 independent and Longines-partnership eras.
Keep reading
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