A. Lange & Söhne
A. Lange & Söhne Little Lange 1 181.037
The A. Lange & Söhne Little Lange 1 (reference 181.037) is a 36.8 mm 18k pink gold watch with a brown dial. It runs on the manual caliber L121.1 with a 72-hour power reserve. It was introduced in 2018 and is still in production.
Specifications
Case
- Reference
- 181.037
- Collection
- Lange 1
- Case size
- 36.8 mm
- Case material
- 18k pink gold
- Case shape
- Round
- Crystal
- Sapphire
- Bracelet / strap
- Alligator leather strap
Dial and bezel
- Dial
- Brown
Movement
- Movement
- Manual
- Caliber
- L121.1
- Power reserve
- 72 hours
- Frequency
- 21,600 vph
- Jewels
- 43
- Functions
- Big date, Small seconds, Power reserve indicator
Production
- Production
- 2018 – today (current)
How it compares within the Lange 1 family
Side by side with other references in the same collection, from the catalog.
| Reference | Size | Material | Dial | Caliber | Years |
|---|---|---|---|---|---|
| 181.037 (This watch) | 36.8 mm | 18k pink gold | Brown | L121.1 | 2018– |
| 117.032 | 40.9 mm | 18k pink gold | Silver | L095.1 | 2012– |
| 136.032 | 41.9 mm | 18k pink gold | Silver | L141.1 | 2019– |
| 191.021 | 38.5 mm | 18k yellow gold | Champagne | L121.1 | 2015– |
| 191.032 | 38.5 mm | 18k pink gold | Silver | L121.1 | 2015– |
| 191.039 | 38.5 mm | 18k white gold | Silver | L121.1 | 2015– |
| 192.032 | 38.5 mm | 18k pink gold | Silver | L121.3 | 2016– |
| 320.032 | 39.5 mm | 18k pink gold | Silver | L021.1 | 2010– |
| 345.033 | 41.9 mm | 18k pink gold | Grey | L021.3 | 2020– |
About the Lange 1 family
The Lange 1 was part of the brand's first modern collection of 1994. Its asymmetric dial places hours and minutes off centre, with a small seconds, the outsize date in a double window and a power reserve indicator, a layout based on the golden ratio.
The family includes the Lange 1 Time Zone, Lange 1 Moon Phase, Grande Lange 1, Little Lange 1, the automatic Lange 1 Daymatic and tourbillon and perpetual calendar versions. In 2015 the core model received a new caliber, the L121.1. Dealers identify the variant, size and metal and check the dial, which comes in several colours and finishes.
Quick answers
- What size is the A. Lange & Söhne Little Lange 1 181.037?
- The A. Lange & Söhne Little Lange 1 181.037 has a 36.8 mm case.
- What movement does the A. Lange & Söhne Little Lange 1 181.037 use?
- It uses the manual caliber L121.1, with a 72-hour power reserve.
- Is the A. Lange & Söhne Little Lange 1 181.037 still in production?
- Yes, it is a current reference.
- When did the A. Lange & Söhne Little Lange 1 181.037 come out?
- It was introduced in 2018.
- What is the A. Lange & Söhne Little Lange 1 181.037 made of?
- The case is 18k pink gold. Bracelet or strap: Alligator leather strap.
Catalog facts checked September 2026.