The Powermatic Nautilus was known for being automatic and displaying the power reserve. Besides being an attractive watch to wear, it is also a power player with the caliber 481 behind its 14k yellow gold caseback. Special on this LeCoultre is that is was produced and timed in the USA and for the US market back then.

The caliber 481 was one of the first automatic movements to display the power reserve, and it has the “bumper” effect caused by the swinging motion of the rotor. We love the symmetrical design especially the sword hands and evenly aged lume.

CASE:

• great overall condition, showing some traces of use
• 3- body 14k yellow gold case with snap on case back
• 34.5 mm (without crown) / 40 mm (lug-to-lug) / 19 mm (between lugs) / 11.3 mm thick
• year: 1950s
• total weight: 43 g

MOVEMENT:

• JLC Caliber 481 - automatic bumper
• 17 jewels, 18000 A/h, 40 hours power reserve
• professionally serviced 08/2024
• -12 sec/d / 270°

DIAL:

• original never touched black dial in great condition
• original hands & crown
  
• lume plots has been removed in the past

STRAP & BUCKLE:

• black after market lizard leather strap fitting up to 20 cm wrist size / 3.7 mm thick
• aftermarket gold plated buckle

 

GOLDAMMER REFERENCE: #561