This Zenith Special with black gilt dial from 1941 was used by pilots in WWII. It's very rare to find them in the 34 mm case as they were also built with 41 mm cases. 

 

CASE:

• excellent overall condition, showing minor traces of use
• 3- body chrome plated case with screw-down case back
• 34 mm (without crown) / 45 mm (lug-to-lug) / 19 mm (between lugs)
• Year: 1941

MOVEMENT:

• Zenith Cal. 12.4 - manual wind
• 15 jewels, 18000 A/h, 44 hours power reserve
• professionally serviced 04/2021
• +3sec/d / 330°

DIAL:

• original never touched black gilt dial in perfect condition
• original hands and dial
• the crown might have been replaced in the past