Rolex Submariner 1680 'Red' Mark 8 1971

Rolex Submariner 1680 Red with Luminova Service Dial

Introduction

Rolex Submariner reference 1680 is the point where the Submariner story splits into two clear paths. One path keeps the clean no date layout. The other introduces a date at three o clock, a Cyclops magnifier and a slightly more versatile personality for everyday wear. The watch here belongs firmly to that second path and adds a twist that makes it especially interesting. It began life in the early 70s  as a classic Rolex Submariner 1680 Red, one of the early examples with the word Submariner printed in red on the dial. Later in its life it returned to Rolex for service and received a Luminova red service dial. The result is a Submariner that carries the case shape, acrylic crystal and overall feel of an early vintage Red Sub, but with a later Rolex dial that uses modern luminous material and late n1990s, printing conventions. To understand why that matters, it helps to look at where the 1680 sits in the Submariner story and what Rolex was doing with service dials when it moved away from tritium.

The Rolex Submariner 1680 in Context

The first date Submariner

Toward the end of the 1960s, Rolex decided to add a date function to its famous dive watch. The new reference 1680 kept the familiar ingredients that had already defined the Submariner for more than a decade. It used a 40 mm Oystersteel case with screw down crown, rotating aluminium bezel insert and a depth rating of 200 metres. The key changes were the date window at three o clock and the acrylic crystal with a Cyclops magnifier to make the date easier to read. Inside sat the automatic calibre 1575, part of the trusted 1500 series. It was a self winding movement with a full balance bridge and a design focused on robustness. In later production it gained hacking seconds, which allowed the wearer to stop the seconds hand and set the time more precisely. This combination turned the Submariner into something more than a pure dive companion. It became a capable daily watch that could move from the water to the office without losing its purpose built character.

The arrival of the Red Submariner

Early 1680 dials are now widely known as Red Subs. The name simply refers to the way Rolex printed the word Submariner in red above the depth rating. Otherwise, the ingredients were typical for the time. A matte black dial, white printed text, tritium luminous plots and a matching hand set. During this period Rolex used more than one dial supplier, and printing technology was still entirely mechanical. That combination produced small differences in font weight, letter spacing and layout from one production batch to another. Over time, dial specialists grouped those variations into different dial types. All share the same basic idea of a single red Submariner line on a matte black background. By the middle of the decade Rolex had shifted to white text only on the 1680, and the red era came to an end.

What makes a Red Sub

The core visual language

When people talk about a Red Submariner, they usually mean a watch that ticks a few clear boxes. The case is a 40 mm Oyster with crown guards. The bezel carries a black aluminium insert with a sixty minute scale and a luminous pearl at zero. The crystal is acrylic, so it gives that gentle distortion at the edges of the dial when viewed from an angle. Most importantly, the dial is matte black with one line printed in red. That single red Submariner line is what sets these watches apart at a glance. The rest of the text, including the depth rating and chronometer lines, appears in white. Tritium luminous plots sit neatly inside painted white frames around the hours. They leave the factory in a pale tone and gradually take on warmer shades as they age. Together, these elements create the classic look that defines the early Submariner Date.

Case, bezel and how it wears

In the hand, a good 1680 case has clear transitions between brushed lug tops and polished case flanks. The crown guards frame the Triplock crown and give the right side of the case its familiar profile. The bezel rotates with firm, positive clicks and the tall black insert gives the watch a slightly more pronounced presence on the wrist than later sapphire models. On the wrist, the combination of modest thickness, curved lugs and relatively compact lug to lug span means the watch wears comfortably on many wrist sizes. The acrylic crystal adds to the experience. It catches the light in a softer way than sapphire and suits the period look of the matte dial and aluminium insert.

Movement: Rolex calibre 1575

The engine of the 1680 is the Rolex calibre 1575, closely related to the well known 1570. It is a self winding movement with central seconds, date function and a reputation for being very tough. The movement uses a free sprung balance with Microstella regulation and a Breguet overcoil hairspring, designs that help keep steady time across different positions and temperatures. In later versions, Rolex added hacking seconds, which lets the wearer pull the crown out and stop the seconds hand for accurate setting. The calibre 1575 powered not only Submariners but also period GMT Master and Sea Dweller models, so it was a workhorse at the core of the professional range. Its presence inside the 1680 ties this watch to that wider Rolex tool watch family.

The role of the service dial

From tritium to Luminova

For much of the vintage period, Rolex used tritium as the luminous material on its sports watch dials and hands. Tritium glows when new but gradually loses strength over the years. It also carries a low level of radioactivity, which is one reason the industry eventually moved on. In the late 1990s, Rolex shifted to non radioactive luminous compounds such as Luminova and then Super Luminova. With that change came new dial signatures at six o clock. Tritium dials carried wording such as Swiss T less than 25, while Luminova dials typically carried a simple Swiss marking for a short period. Soon after, Super Luminova dials adopted Swiss Made as the standard signature. When a dial with one of these later signatures appears on a watch produced decades earlier, it indicates a service replacement made during a later overhaul.

What is a Luminova red service dial

In most cases, when a tritium dial or hand set needed replacement on a 1680, the service department fitted a white text dial rather than a red one. That made sense for parts planning because white text 1680 dials had been standard since the mid 70s However, there is a small group of dials where Rolex printed the word Submariner in red again, but this time with Luminova luminous plots and late 1990s printing. These dials combine the visual signature of a Red Sub with the luminous behaviour and dial markings of a much later era. The key points are the red Submariner line, bright modern luminous material and the Swiss or Swiss Made wording at six o’clock instead of a tritium signature. A Submariner 1680 that left the factory in the early 70s and later received this type of dial at service sits at the intersection of two periods in the model’s history.

Evidence for the Luminova red service dial

Documented examples and discussion

Over time, dedicated Red Sub resources and long running online forums have documented a number of these Luminova red service dials. Specialist sites describe them as Luminova Red Subs and note that Rolex did sometimes respond to service requests by supplying a red dial rather than the more common white one. The luminous plots on these dials glow bright green in the dark, a clear difference from the soft and brief glow of aged tritium. Detailed dealer listings have also shown 1680 Submariners with bright glowing red text dials, often described as Swiss only Luminova service dials. These write ups typically highlight the modern luminous material, very clean print quality and lack of tritium wording at six o’clock as evidence that the dial is a late Rolex service part. Long running communities focused on vintage Rolex have discussed these dials many times, comparing fonts, coronet shapes and minute tracks with both period correct tritium red dials and later service dials. The broad conclusion is consistent. The Luminova red service dial exists, it was produced by Rolex for a limited window and it appears much less often than white text service replacements.

Why they are relatively uncommon

Rolex stopped fitting red text dials to new 1680 Submariners in the mid 1970s. By the time Luminova arrived in the late 1990s, the factory standard for service dials on this reference was white text. That means any decision to supply a red Luminova dial was a special case, not the default. Given the short period in which Swiss only Luminova dials were made and the brand preference for simple white service dials, the number of red Luminova dials produced was never likely to be large. This is why they rarely appear in open sale compared with white service dials.

Bracelet, bezel and period details

During the period when this Submariner left the factory, Rolex commonly paired the 1680 with an Oyster bracelet such as reference 9315 and later 93150. End link references evolved over time, and there are many original combinations documented in period catalogues and surviving sets. Black aluminium bezel inserts with tritium pearls were standard, and the tall acrylic crystal gave the watch its distinctive side profile. A 1680 that later received a Luminova red service dial may now be on an earlier bracelet, a later bracelet or even an aftermarket strap, depending on how it has been worn through the years. The underlying story remains the same. It is an early Submariner Date that has seen enough use and service attention for Rolex to update the dial and luminous material according to the standards of a later era.

Historical significance of the 1680

A turning point in the Submariner story

The 1680 is the reference that brought the date function into the Submariner family. It turned the model from a pure dive instrument into a watch that could easily carry someone through a full working day, holidays and time in and around the water. The combination of Cyclops, date at three, matte dial, acrylic crystal and aluminium bezel insert became the template for later Submariner Date references right through the pre ceramic era. Early red text examples capture a very specific moment when Rolex was still using matte dials and acrylic crystals but was beginning to modernise the line.

Where the Luminova red service dial fits in

A 1680 that started life as a Red Sub and later received a red Luminova service dial shows how Rolex supports its older watches over long periods of time. Rather than treating the watch as a static museum object, the brand replaced parts when needed to keep it functional and legible. In this case, the replacement dial keeps the spirit of the original red Submariner text while updating the luminous material and print quality to the standard of the late 90s. It is a snapshot of two eras on one watch. The case, bezel, crystal and basic architecture belong to the early Submariner Date story. The dial and luminous behaviour belong to a later chapter where safety regulations and luminous technology had moved on.

Final Thoughts

A Rolex Submariner 1680 Red with a Luminova service dial tells a longer story than a simple snapshot from the early 1970s. It begins as one of the first Submariner Date models with the now iconic red Submariner text and classic matte dial. Later, it returns to Rolex and receives a new dial that keeps that red signature but replaces tritium with modern luminous material and late period printing. The result is a watch that links two important chapters in the Submariner line. The original case, bezel and movement speak to the birth of the date equipped Submariner. The Luminova red service dial reflects the way Rolex continued to support and update its earlier references as luminous technology and regulations changed. Together they form a piece of Submariner history that feels both rooted in its origin and adapted for life in a later era.

• Case in excellent vintage condition, light hairlines visible on case. 
• Pinhead chip on side of case (Cosmetic) 
• No corrosion or pitting visible on case. 
• Bracelet in Great condition, pinhead chips visible
• Bracelet shows some stretch

Dial & hands excellent condition.