Universal Genève Triple Calendar Ref. 21320 – A Collector’s Classic from 1950s

The Universal Genève Triple Calendar stands among the most desirable and collectible vintage complications on the market today. This Ref. 21320 is a perfect illustration of why — combining elegant design with practical functionality in one beautifully balanced timepiece.

Housed in a well-proportioned 35 mm stainless steel case with softly downturned lugs, this example is especially appealing due to its honest and original condition — something increasingly difficult to find.

The clean silver dial offers classic vintage charm, while the triple calendar complication adds both visual interest and everyday usability. Inside beats the reliable Universal Genève Cal. 291 manual movement, completing a watch that reflects the golden era of mid-century watchmaking.

A timeless and highly collectible piece — elegant, functional, and full of character.

- wrist size in our picture is 18cm circumference -

DIAL:

• original never touched silver dial in good condition
  
• some spots of patina and aging throughout the dial
• original hands and crown

STRAP & BUCKLE:

• matte grey GOLDAMMER Kardinal leather strap fitting up to 20 cm wrist size / 2 mm thick
• GOLDAMMER stainless steel buckle

CASE:

• great overall condition, showing minor traces of wear
• 3- body stainless steel case with snap-on case back
• 35 mm (without crown) / 43 mm (lug-to-lug) / 17 mm (between lugs) / 10 mm thick
• Year: 1940s
• reference: 21320
• total weight: 40 g

MOVEMENT:

• Universal Geneve Cal. 291 - manual wind
• 15 jewels, 18000 A/h, 38 hours power reserve
• professionally serviced in 03/2026
• +9 sec/d / 340°

BOX & PAPERS:

• GOLDAMMER certificate of authenticity & service documentation card
• GOLDAMMER box

GOLDAMMER REFERENCE: #1517