Rado · True Round

Rado True Round Thinline Les Couleurs™ Le Corbusier

Reference R27091612 · Classic · 39 mm

Version (5 drawn)

Illustration drawn from the specifications: case to scale, colours and style approximate. Not a photo. Photos on the official page

Specifications

Reference: R27091612
Family: True Round
Category: Classic
Status: Current
Case material: Ceramic
Case diameter: 39 mm
Case thickness: 5 mm Official
Lug-to-lug: —
Lug width: —
Water resistance: —
Bezel: —
Calibre: R420 Official

Official product page · retrieved October 18, 2026

Does it fit your wrist?

Enter your wrist circumference. The watch appears to scale on the flat top of the wrist.

Wrist circumference (cm)

Top view on a wrist, to scale

Side view, across the wrist

No lug-to-lug figure exists for this reference yet, so fit cannot be computed.

Measurements and sources

Brands rarely publish thickness, lug width and lug-to-lug together. Each observation below is kept separate, with who gave it.

Case thickness

Value	Type	Source	Date
5 mm	Official	Rado	October 18, 2026

Lug-to-lug

No source gave this figure yet.

Lug width

Lug width is the gap between the lugs, where the strap fits. It is not lug-to-lug.

No source gave this figure yet.

Calibre source

Official Rado · retrieved October 18, 2026

Other versions in the same case

These references differ only by dial, bracelet or bezel colour. The brand gives them the same case dimensions, so the figures on this page apply to them too.

R27092622 · Spectacular ultramarine 4320K
R27093632 · Sunshine yellow 4320W
R27095652 · Powerful orange 4320S
R27096662 · Slightly greyed English green 32041

Other True Round references

Watch	Ø	Thickness	Lug-to-lug	Calibre
True Round Thinline R27006912	39 mm	5 mm	—	R420
True Round (40 mm) R27238162	40 mm	8.9 mm	—	R073
True Round Automatic R27056152	40 mm	10.4 mm	—	R763
True Round Automatic Open Heart R27107172	40 mm	10.4 mm	—	R734
True Round Open Heart Limited Edition R27183012	40 mm	10.4 mm	—	R734
True Round Thinline Anima Limited Edition R27112312	40 mm	9 mm	—	R766
True Round (30 mm) R27059162	30 mm	8 mm	—	R079

Other Rado models

Watch	Ø	Thickness	Lug-to-lug	Calibre
Florence Automatic R48903103	39 mm	11 mm	—	R763
True Round Secret R27108312	40 mm	10.4 mm	—	R734
True Round x Les Couleurs® Le Corbusier R27048162	40 mm	10.4 mm	—	R763
True Square Automatic (9.6 mm thick) R27078172	38 mm	9.6 mm	—	R763
True Square Automatic (9.7 mm thick) R27077102	38 mm	9.7 mm	—	R763
True Square Automatic Open Heart R27073012	38 mm	9.7 mm	—	R734

Show 54 more

Watch	Ø	Thickness	Lug-to-lug	Calibre
True Square Automatic Skeleton R27177255	38 mm	9.7 mm	—	R808
True Square Undigital R27075152	38 mm	9.6 mm	—	R763
True Square x Ash Barty Limited Edition R27123905	38 mm	9.7 mm	—	R734
True Square X Kunihiko Morinaga Special Edition R27086172	38 mm	9.7 mm	—	R734
Centrix (39.5 mm) R30021152	39.5 mm	9.8 mm	—	R073
Centrix Automatic (39.5 mm) R30017012	39.5 mm	11.3 mm	—	R763
Centrix Automatic Open Heart R30008302	39.5 mm	11.3 mm	—	R734
DiaStar Original (38 mm) R12161313	38 mm	12.1 mm	—	R764
DiaStar Original 60-Year Anniversary Edition R12163118	38 mm	12.3 mm	—	R764
DiaStar Original Automatic (38 mm) R12160103	38 mm	12.1 mm	—	R764
DiaStar Original Automatic Skeleton R12162153	38 mm	11.9 mm	—	R808
DiaStar Original Skeleton R12159309	38 mm	11.9 mm	—	R808
DiaStar Original Skeleton Limited Edition R12166309	38 mm	11.9 mm	—	R808
DiaStar Original X Tej Chauhan Special Edition R12165155	38 mm	11.7 mm	—	R764
Florence (38 mm) R48912023	38 mm	8.7 mm	—	R073
True Square Thinline R27047902	37 mm	5 mm	—	R420
Coupole Automatic (37.7 mm) R22861115	37.7 mm	10.2 mm	—	R763
Coupole Automatic (41 mm) R22876013	41 mm	10.3 mm	—	R763
Coupole Automatic Power Reserve R22878045	41 mm	11.7 mm	—	R772
Coupole Open Heart Automatic R22895215	41 mm	10.3 mm	—	R734
HyperChrome Automatic Open Heart R32021102	42 mm	10.2 mm	—	R734
HyperChrome (steel) R32280109	41.5 mm	11.7 mm	—	R292
HyperChrome (titanium) R32281309	41.5 mm	11.7 mm	—	R292
Coupole R22885945	34 mm	9.7 mm	—	R084
Anatom R10260152	27.5 mm	10.2 mm	—	R592
Anatom Automatic R10200152	32.5 mm	11.3 mm	—	R766
Anatom Automatic Skeleton R10206109	32.5 mm	11.5 mm	—	R808
True Square R27072012	29.2 mm	8.1 mm	—	R079
Centrix (30.5 mm) R30024012	30.5 mm	8.9 mm	—	R079
Centrix Automatic (30.5 mm) R30019012	30.5 mm	10.3 mm	—	R582
Coupole Automatic (31.8 mm) R22865115	31.8 mm	9.7 mm	—	R561
DiaStar Original (30 mm) R12171313	30 mm	11 mm	—	R586
DiaStar Original Automatic (30 mm) R12170113	30 mm	11 mm	—	R586
Florence (30 mm) R48913023	30 mm	7.8 mm	—	R079
Captain Cook R32223229	39 mm	12 mm	—	R763
Captain Cook Automatic (39 mm) R32223203	39 mm	12 mm	—	R763
Captain Cook Over-Pole Limited Edition R32193018	39 mm	10.9 mm	—	R862
Captain Cook X Tennis Limited Edition R32222108	39 mm	12 mm	—	R763
Captain Cook Discover R32278162	40.7 mm	12.3 mm	—	R763
Centrix Chronograph R30210152	41 mm	11.4 mm	—	R312
Captain Cook Automatic (42 mm, 12.1 mm thick) R32505019	42 mm	12.1 mm	—	R763
Captain Cook Automatic (42 mm, 12.3 mm thick) R32105203	42 mm	12.3 mm	—	R763
Captain Cook Automatic Bronze R32504315	42 mm	12.5 mm	—	R763
Captain Cook Limited Edition R32504208	42 mm	12.5 mm	—	R763
Captain Cook X European Cricket Special Edition R32138208	42 mm	12.3 mm	—	R763
Captain Cook Automatic Chronograph (high-tech ceramic) R32146208	43 mm	14.8 mm	—	R801
Captain Cook High-Tech Ceramic R32127152	43 mm	14.6 mm	—	R734
Captain Cook High-Tech Ceramic Automatic Chronograph R32189313	43 mm	16.2 mm	—	R801
Captain Cook High-Tech Ceramic Chronograph R32195202	43 mm	16.2 mm	—	R801
Captain Cook High-Tech Ceramic Diver R32129152	43 mm	14.6 mm	—	R763
Captain Cook High-Tech Ceramic Skeleton R32129168	43 mm	14.6 mm	—	R808
Captain Cook Hrithik Roshan Special Edition R32128162	43 mm	14.6 mm	—	R734
Captain Cook Automatic Chronograph (steel) R32145158	43 mm	14.8 mm	—	R801
HyperChrome Chronograph R32259153	44.9 mm	11.7 mm	—	R312

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