
Wristwatches · Wristwatch
R.C.N Tudor Submariner (Ref. 9401/0) "Hybrid Snowflake", 1978
- Maker / attribution
- Tudor (maker)
- Date
- 1978
- Historical period
- Quartz Revolution (1969 – 1990)
- Country of origin
- Switzerland
- Object type
- Wristwatch
- Stock no.
- TDRSUB94010MIL-3
- Credit line
- Dealer listing, Craft & Tailored (TDRSUB94010MIL-3)
- Catalogue title (original)
- 1978 R.C.N Tudor Submariner (Ref. 9401/0) "Hybrid Snowflake" (English)
View the source record (dealer listing) ↗ (opens another website in a new tab)Suggest a correction
Record summary
Catalogued by Craft & Tailored (dealer), Los Angeles (stock number TDRSUB94010MIL-3), this is a wristwatch by Tudor, made in Switzerland, dated 1978. The Atlas places it in the Quartz Revolution period (1969 – 1990) of its Wristwatches collection. The record is illustrated with 6 photographs.
Assembled from the source record's structured fields. Dates and attributions are given as the source states them; where a field is missing the Atlas leaves it blank rather than estimating.
Catalogue description
Dealer description — Craft & Tailored
This 1978 Royal Canadian Navy issued Tudor Submariner is very rare and a specific variant that is rarely seen. One could argue that these particular "Mil Sub" variants of the Tudor 9401/0 non-date Submariner that were issued to the Royal Canadian Navy are one of the most interesting out of all the "Mil Subs" known to exist. These specific 9401/0's possess a dial that is very similar to matte Tudor 9401/0's with the standard dial meaning the dial maintains the typical triangular lume plot at 12, rectangular plots at the “3-6-9” o'clock positions, and circular lume plots for the other hour markers, The exciting thing is that these specific R.C.N Tudor 9401/0's are fitted with “snowflake” handsets. According to Tudor Watch expert Ross Povy of Tudor Collector who has written some great articles on Tudor watches including Tudor "Mil Subs" like this one via our friends over at Revolution Watch "I’ve seen a number of “oddball” MilSubs, where Navy watchmakers have equipped watches with whatever they had lying around; this is the fun part about finding Mil Subs in their combat state. The abovementioned combination, however, has been seen in this configuration many, many times and nearly all have a history in the Canadian Navy" Additionally Ross recently found a vintage Tudor Advertisement that shows the early "Hybrid Snowflake" which is pictured above which we have provided with permission above from Tudor Collector . Another interesting and known fact for the Tudor (Ref. 9401/0) "Hybrid Snowflake is that the serial range is quite unique and sits in the 88XXXX- 89XXXX so the production window for the watch is very small and quite unique as most of the known examples have consecutive serial numbers in the 8XXXXX range. This is a very interesting Tudor that is seldom seen with a very distinctive and unique look. It has also been said that a reference like this one we are featuring here at Craft + Tailored is the precursor to the very popular and modern Tudor Black Bay as an example from the Tudor archive-inspired the Black Bay Design. Stock # TDRSUB94010MIL-3 Brand Tudor Style Submariner Model 9411/0 Serial 88XXXX Size Men's Material Stainless Steel Dial Matte Black "Hybrid" Millimeters 40 Bracelet Rolex 93150 Oyster Bracelet W/ 580 End Pieces CASE & BRACELET The exceptional case exhibits a light sleeve polish, retaining present factory chamfers down the symmetrical lugs and light signs of honest use. The black bezel insert is a later luminova service replacement and is in excellent condition. The case retains its Rolex trip-lock crown. The case back retains all of its original factory markings in crisp and deep condition. The Rolex 93150 Oyster bracelet with 580 end pieces was sourced on the watch and retains 11 links that show minimal stretch from use. DIAL & HANDS The matte black "radial" dial is in flawless vintage condition showing no blemishes or damage. The lume has taken on a gorgeous creamy yellow patina, under U.V. light inspection the lume exhibits no degradation or lume loss. The original tritium "snowflake" hands match the dial perfectly and show no degradation when inspected under U.V. light. ACCESSORIES None. The watch is running and keeping time perfectly, previous service history is unknown.
Historical context
Quartz Revolution (1969 – 1990)
Seiko's Astron begins mass quartz timekeeping; traditional industries contract sharply.
Quartz and digital watches transformed the market after 1969. Swiss employment collapsed, Japanese and Hong Kong production soared, and the Swatch (1983) helped the Swiss industry recover; mechanical watches survived as luxury goods.
Read the period in the timelineMore wristwatches from this periodEarlier: Modern Mechanical Horology
Atlas type guide
Dive and water-resistant watches
Keeping water and dust out of a wristwatch was a long-standing challenge. Rolex's screw-down Oyster case (1926) and Omega's Marine (1932) were landmarks; in the early 1950s Blancpain's Fifty Fathoms and Rolex's Submariner defined the professional dive watch with rotating bezels for timing dives, luminous dials and high water resistance. The ISO 6425 standard (1982) later codified what a 'diver's watch' must do.
Dive watches became icons of post-war design and exploration, and their evolution — helium escape valves, ceramic bezels, saturation-diving depth ratings — records the history of underwater work.
What to look for
- Unidirectional or bidirectional rotating bezel with minute markings.
- Screw-down crown and case back; depth rating printed on the dial.
- Luminous hands and markers (radium before c. 1960, tritium c. 1960–1998, then Super-LumiNova).
- Reference numbers on the case between the lugs or inside the back.
Dating clues
- Screw-down Oyster cases: from 1926.
- Professional dive watches: from 1953.
- Tritium 'T' marks on dials: c. 1960–1998.
General guidance written by the Atlas editors about this kind of object. It is not a statement about this particular piece; for that, rely on the source record above and on physical examination.
Related records
Wristwatches · c. 1973
Tudor Prince Oysterdate Ranger II, ref. 9101/1, c. 1973
Antiquorum auction archive, Geneva
Wristwatches · c. 1973
Tudor Prince Oysterdate, ref. 9101/1, c. 1973 (Antiquorum Lot 389-114)
Antiquorum auction archive, Geneva
Wristwatches · c. 1973
Tudor Prince Oysterdate, ref. 9101/1, c. 1973 (Antiquorum Lot 389-115)
Antiquorum auction archive, Geneva
Wristwatches · c. 1974
Tudor Princess Oysterdate, ref. 9311/0, c. 1974
Antiquorum auction archive, Geneva
Wristwatches · 1970
Wristwatch by Heno, Switzerland, 1970
Museum Rotterdam
Wristwatches · 1960–1986
'Tri-Compax' calendar chronograph wristwatch in gold case, by Universal, Geneva, Switzerland, 1960–1986.
Science Museum Group, London
Wristwatches · 1969–1970
Beta 21 Quartz wristwatch movement, made in Switzerland, 1970.
Science Museum Group, London
Wristwatches · c. 1969
Omega Speedmaster Moonwatch, ref. 145022-69st, c. 1969
Antiquorum auction archive, Geneva
