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A. Lange & Söhne · Lange 1

A. Lange & Söhne Lange 1 Tourbillon Perpetual Calendar “Lumen“

Reference 720.035 · Classic · 41.9 mm

Ø 41.9 mm
Illustration drawn from the specifications: case to scale, colours and style approximate. Not a photo. Photos on the official page

Specifications

Reference
720.035
Family
Lange 1
Category
Classic
Status
Current
Case material
Platinum
Case diameter
41.9 mm
Case thickness
13 mm Official
Lug-to-lug
—
Lug width
—
Water resistance
30 m
Bezel
—
Calibre
L225.1 Official
Power reserve
50 h
Frequency
21,600 vph (3 Hz)

Official product page · retrieved October 20, 2026

Does it fit your wrist?

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

No lug-to-lug dataFlat top of the wrist 54.1 mm
Top view on a wrist, to scale
Flat top of the wrist 54.1 mmNo lug-to-lug dataCase diameter 41.9 mm
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
13 mm Official A. Lange & Söhne Published as the case height. October 20, 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 A. Lange & Söhne · retrieved October 20, 2026

Other Lange 1 references

Watch Ø Thickness Lug-to-lug Calibre
Lange 1 Perpetual Calendar 345.036 41.9 mm 12.1 mm — L021.3
Lange 1 Tourbillon Perpetual Calendar 720.032 41.9 mm 12.2 mm — L082.1
Lange 1 Daymatic Honeygold 320.050 39.5 mm 10 mm — L021.1
Lange 1 (platinum, calibre L901.0) 101.025 38.5 mm 10 mm — L901.0
Lange 1 191.032 38.5 mm 9.8 mm — L121.1
Lange 1 Moon Phase 192.029 38.5 mm 10.2 mm 47 mm L121.3
Lange 1 Time Zone 136.025 41.9 mm 10.9 mm — L141.1

Other A. Lange & Söhne models

Watch Ø Thickness Lug-to-lug Calibre
Zeitwerk 142.025 41.9 mm 12.2 mm — L043.6
Richard Lange Tourbillon "Pour le Mérite" 760.026 41.9 mm 12.2 mm — L072.1
Zeitwerk Honeygold “Lumen” 142.055 41.9 mm 12.6 mm 50 mm L043.9
Grand Lange 1 Moon Phase 139.025 41 mm 9.5 mm — L095.3
Minute Repeater Perpetual 607.091 40.5 mm 12.1 mm — L122.2
Grand Lange 1 137.033 41 mm 8.2 mm — L095.1
Show 38 more
Watch Ø Thickness Lug-to-lug Calibre
Saxonia Thin (40 mm, platinum) 211.062 40 mm 6.2 mm — L093.1
Richard Lange 232.032 40.5 mm 10.5 mm — L041.2
Richard Lange "Pour le Mérite" 260.028 40.5 mm 10.7 mm — L044.1
Zeitwerk Minute Repeater 147.025 44.2 mm 14.1 mm — L043.5
1815 Annual Calendar 238.026 40 mm 10.1 mm 46.6 mm L051.3
Saxonia Moon Phase 384.026 40 mm 9.8 mm 46.8 mm L086.5
Richard Lange Jumping Seconds 252.029 39.9 mm 10.6 mm — L094.1
Richard Lange Minute Repeater 606.079 39 mm 9.7 mm — L122.1
Zeitwerk Date 148.033 44.2 mm 12.3 mm — L043.8
Zeitwerk Minute Repeater Honeygold 147.050 44.2 mm 14.1 mm — L043.5
1815 Tourbillon 730.032 39.5 mm 11.1 mm — L102.1
1815 Up/Down (39 mm, pink gold) 234.032 39 mm 8.7 mm 45 mm L051.2
Saxonia Thin (39 mm) 205.086 39 mm 6.2 mm — L093.1
1815 (calibre L051.1) 235.032 38.5 mm 8.8 mm — L051.1
Langematik Perpetual 310.032 38.5 mm 10.2 mm — L922.1
Saxonia Outsize Date 381.031 38.5 mm 9.6 mm — L086.8
Richard Lange Perpetual Calendar "Terraluna" 180.032 45.5 mm 16.5 mm — L096.1
Lange 31 130.039 45.9 mm 15.9 mm — L034.1
Little Lange 1 (platinum) 181.062 36.8 mm 10 mm — L121.1
1815 Up/Down (37.5 mm, pink gold) 244.037 37.5 mm 8.7 mm — L051.2
Saxonia Thin (37 mm, pink gold) 201.033 37 mm 5.9 mm — L093.1
Little Lange 1 181.063 36.8 mm 9.5 mm — L121.1
Little Lange 1 Moon Phase (pink gold) 182.030 36.8 mm 9.5 mm — L121.2
Little Lange 1 Moon Phase (white gold) 182.086 36.8 mm 10 mm 43.8 mm L121.2
Saxonia Annual Calendar 331.033 36 mm 9.8 mm — L207.1
1815 (calibre L152.1) 220.037 34 mm 6.4 mm — L152.1
Odysseus 363.179 40.5 mm 11.1 mm 47 mm L155.1
Odysseus Honeygold 363.150 40.5 mm 11.1 mm — L155.1
1815 Rattrapante Perpetual Calendar 421.025 41.9 mm 14.7 mm — L101.1
1815 Rattrapante 425.025 41.2 mm 12.6 mm — L101.2
Datograph Up/Down 405.035 41 mm 13.1 mm 48.4 mm L951.6
Datograph Perpetual Tourbillon 740.056 41.5 mm 14.6 mm — L952.2
Datograph Perpetual Tourbillon Honeygold “Lumen” 740.055 41.5 mm 14.6 mm — L952.4
Triple Split 424.025 43.2 mm 15.6 mm — L132.1
Odysseus Chronograph 463.178 42.5 mm 14.2 mm — L156.1
Datograph Handwerkskunst 405.048 41 mm 13.1 mm — L951.8
Datograph Perpetual 410.038 41 mm 13.5 mm — L952.1
1815 Chronograph 414.026 39.5 mm 11 mm 48.4 mm L951.5

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