Rolex Chronograph 2507

Yellow-gold Rolex ref. 2507 monopusher chronograph with a silvered multi-scale dial — Case 25672, dated by Antiquorum to 1928. Photo: Antiquorum, lot 537 (2008).

The 2507 is a round, non-Oyster Rolex monopusher chronograph.

Core facts

Detail	Documented record
Reference	2507
Family	Early Rolex chronograph
Catalogue dates	Examples dated 1928–1940s; production span unknown
Chronograph layout	One pusher and two registers in the examined examples
Cases	Yellow gold and stainless steel are documented in auction records
Diameter	31–40 mm across catalogue descriptions
Movement	Manual, 17 jewels in several catalogue entries; movement sizes and caliber descriptions vary by watch

Where it sits in the line

Ref. 2508 is the two-pusher counterpart; both are non-Oyster wrist chronographs.

Production outline

Antiquorum dates one example to 1928, two to the 1930s and another to the 1940s. Heritage dates its steel example to about 1935. The production span is unknown.

Antiquorum's 2014 lot 592 is internally inconsistent: its heading and essay identify ref. 2562, while the description calls case 22411 a 2507. No reference stamp is legible in the catalogue image. A Rolex Forums post labels a cropped copy of Antiquorum's 2008 photograph as 30 mm; Antiquorum lists that watch, case 25672, at 40 mm.

Movement notes

The catalogues list 12-, 12.5- and 13-ligne movements. Heritage identifies the movement in case 65646 as a 17-jewel Y65. The separate DGR/iCollector watch has “MARCONI” on the bridge; its caliber number is not legible.

Open movement from a separate Rolex Marconi watch; MARCONI is visible on the bridge — Movement photographed in the DGR/iCollector listing.

Dial map

Antiquorum describes black multi-scale dials and a matte-silver dial with gold Arabic numerals, a telemeter and a spiral tachymeter. Heritage's steel watch has a two-tone silver-and-gold dial, radial Arabic numerals, subsidiary seconds and blue batons. The DGR listing shows a black, multi-scale dial on the watch whose caseback is stamped 2507. The dial is worn and reflective; the photo cannot establish whether it is original.

Worn black multi-scale dial on a Rolex Marconi watch — Dial of the separate DGR/iCollector watch.

Case, bezel, crystal, and crown notes

Auction catalogues document yellow-gold and stainless-steel cases. Antiquorum's gold case 25672 has a hinged back and concave lugs. Heritage describes steel case 65646 as a three-body case with a snap back and one ovoid pusher. The separate DGR example's inner caseback is stamped “R.W.C Ltd” and “2507.” The DGR lot gives no date for the watch.

Case 25672 is the only 40 mm example here; the others measure 31–33 mm.

Inside caseback stamped R.W.C Ltd and 2507 — Caseback of the separate DGR/iCollector watch.

Bracelet, clasp, and packaging notes

The catalogue photographs show leather or cloth straps. Antiquorum's 1999 lot records a Rolex buckle and fitted box but does not say whether they came with the watch. No original bracelet or clasp fitment is established for the 2507.

Auction record

The 1992 and 1999 Antiquorum catalogues describe similar black-dial gold watches, but neither gives a case number to show whether they are the same watch.

Date	Source	Case or identifying details
1992	Antiquorum, lot 28	Yellow-gold black-dial watch; 31 mm; 12-line, 17-jewel movement; dated to the 1940s.
1999	Antiquorum, lot 263	Yellow-gold black-dial watch; 32 mm; 13-line, 17-jewel movement; dated to the 1930s.
2000	Antiquorum, lot 69	Yellow-gold silver-dial watch; 32 mm; 13-line, 17-jewel movement; dated to the 1930s.
2008	Antiquorum, case 25672	Yellow gold; dated 1928; catalogue reports 40 mm and a 12.5-line, 17-jewel movement.
2012	Heritage, case 65646	Stainless steel; circa 1935; 33 mm; Heritage identifies the movement as Y65.

Gallery

Case 25672, yellow gold, dated 1928. Photo: Antiquorum, lot 537 (2008).
Separate DGR/iCollector watch with a black multi-scale dial; the surface is heavily worn and reflects the light.
Inside caseback of the DGR/iCollector watch, stamped “R.W.C Ltd” and “2507.”
Movement from the DGR/iCollector watch; “MARCONI” is visible on the bridge, but no caliber number is legible.

Sources