Reference:5508

Submariner -> 5508

The 5508 is the last mainstream small-crown Submariner without crown guards, the watch that closes the earliest Submariner case chapter just before the 5512 locks crown guards into the line for good. Production runs roughly 1957 to 1961, with documented late examples carrying 1962 features. It is a fully gilt-era watch, slim through the case middle, and the cleanest mature expression of the no-crown-guard small-crown shape.

Rolex Submariner Ref. 5508

Core facts

detail	value
reference	5508
family	Submariner (no date)
production	approximately 1957 to 1961
movement	caliber 1530
case	37mm, transitioning to 38mm in later production
crown	small, no crown guards
crystal	acrylic
water resistance	100m
lume	radium, transitioning to tritium in late examples

Where it sits in the line

The 5508 sits at the clean endpoint of the early small-crown branch. It runs alongside the big-crown 6538 and the transitional 5510, and exits the catalog just before the 5512 introduces crown guards and the 40mm case that becomes the family standard.

From the 6204 and 6205 the 5508 inherits the small-crown identity but upgrades to caliber 1530 from the earlier bumper automatics. A subtle case-size increase from 37mm in early production to 38mm later foreshadows the 40mm jump that arrives with the 5512.

Production outline

Production runs from approximately 1957 to 1961, a mid-length run by early Submariner standards, with a small set of late examples documented into 1962. The 5508 belongs entirely to the glossy gilt dial era: glossy black lacquer with gilt-coloured printing, markers, and chapter ring. The case stays small-crown and unguarded throughout, and the depth rating stays at 100m, which is the last time that figure appears on a small-crown Submariner before the crown-guard generation lifts it.

Movement notes

The 5508 uses caliber 1530, a full-rotor automatic and a clean upgrade over the bumper A260 of the 6204 and 6205. It is the same movement that appears in early 5512 and 5513 production, which makes the 5508 the bridge between the bumper-era small-crown watches and the mature crown-guard family. Caliber 1530 shares the diameter of the earlier 1030 but was reduced to 5.75mm in height, a slimming that preserved case compatibility while sitting flatter in the watch.

Dial map

Gilt dial with red triangle bezel insert

Glossy gilt

Every production-era 5508 dial is glossy black lacquer with gilt-coloured printing, markers, and chapter ring. The layout is the established Submariner format: Mercedes hands (the three-pointed hour hand whose top point carries a circular lume plot), depth rating, and Submariner text. Some examples carry a Singer manufacturer marking on the reverse, visible only with the dial removed; Singer was one of the principal Swiss dial suppliers to Rolex during this period, and the back-stamp is a useful provenance indicator on loose dials.

Four-line gilt variant

A four-line gilt dial variant is documented on the 5508. It is anomalous on its face, because the 5508 is a non-chronometer reference and the fourth line of text is the COSC chronometer certification that should not appear on a non-chronometer watch. Collectors treat the four-line 5508 as a rare sub-variant rather than a production standard.

Tropical

Tropical examples, where the black lacquer has aged to brown or chocolate tones, are known and actively sought. A 1959 example with serial 489,xxx is a strong tropical anchor.

Exclamation dot

Late 5508 examples from around 1962 can carry an exclamation dot, a small lume dot placed under the six o'clock marker. The dot belongs to the late-radium transition, when Rolex was moving from radium to tritium luminous material, and is one of the few features that places a 5508 firmly at the tail end of the run. A 1962 exclamation-dot example with its original presentation box is documented.

Service dials

Service replacement dials appear on surviving 5508s and need to be distinguished from original production dials. A 1958 example carries a service dial alongside a later bezel insert, a repaired rivet bracelet, and a later Jubilee clasp. It is not a clean watch, but it is an honest one, and shows how the layered history of a vintage Submariner reads in the metal.

Case, bezel, crystal, and crown

Small crown case profile — no crown guards

The 5508 case is small-crown and unguarded throughout, starting at 37mm in early production and growing to 38mm later in the run. The acrylic crystal and rotating dive bezel carry over from the earlier 6204 lineage, and the 100m depth rating reflects the small-crown specification that runs from the 6204 forward.

The absence of crown guards is the visual identifier. Set against the 5512 that follows, the 5508 sits cleaner and slimmer through the right side of the case.

Bracelets, end links, clasps, and packaging notes

Documented bracelet fitments are the 7206/58 rivet bracelet and the 6636/58 stretch rivet bracelet. One example carries a rivet bracelet with 80 end links; another shows a rivet stretch bracelet with 64 end pieces and a clasp dated 3/60. A 1962 example pairs a period-correct rivet bracelet with an original presentation box, the only 5508 in the documented set with surviving packaging.

Special branches

No-crown-guard 5508 example

The 5508 is itself the special branch within the 5xxx family. It is the only mature small-crown 5xxx Submariner without crown guards, and that transitional position carries the reference more than any one variant does.

Exclamation dot late examples

The exclamation-dot examples from 1962 form a distinct sub-branch that bridges the 5508 into the radium-to-tritium transition era and overlaps with early crown-guarded production on neighbouring references.

Historical market and auction record

The documented set is small but consistent. A 1959 tropical example with serial 489,xxx, caliber 1530, faded original bezel, and rivet bracelet with 64 end pieces sets the high end. The 1958 example with service dial, later insert, repaired bracelet, and later Jubilee clasp sets the honest survivor end. The 1962 exclamation-dot example with presentation box rounds out the set.

The 5508 holds a specific market position. It is less famous than the 6538 and less structurally important than the 5512, but it is the cleanest expression of the small-crown no-crown-guard Submariner in its most mature form. Collectors who prize the slim early case shape over the later crown-guard profile pay close attention here.

Sources

• RolexHaven.com variant pages: 5508 Red Triangle / 5508 Silver Depth / 5508 Tropical / 5508 SCOC / and more
• History of the Rolex Submariner - Part 2, The 55XX References and 1680 Date — Tom Mulraney, Monochrome
• Vintage Rolex Submariner Reference 5508 — Bob's Watches editorial staff, Bob's Watches
• Inside Mike Wood's 'For Exhibition Only': A Private Rolex Collection On Limited Display — Tim Vaux, Hodinkee
• Rolex Submariner Ref 5508 Small Crown Tropical Dial Circa 1959 — unknown, Wanna Buy A Watch?
• Rolex Submariner 5508 Service Dial — unknown, Loupe This
• Rolex Submariner Ref.5508 1962 Exclamation Dot Dial — Vintage Gold Watches, Vintage Gold Watches
• The Vintage Rolex Field Manual — Colin A. White, Morning Tundra