Patek Philippe. A fine 18K gold rectangular wristwatch with black dial and a 14K gold bracelet

Patek Philippe. A fine 18K gold rectangular wristwatch with black dial and a 14K gold bracelet
Retailed by Brock & Co., Los Angeles
Reference: 425
Date: 1937
Movement: 18-jewel Cal. 9"' – 90 manual winding, screwed monometallic balance, flat spring, micrometer regulator, No. 832203
Dial: Black, applied gold baton numerals, subsidiary seconds, gold hands, signed by Brock
Case: Brushed and polished rectangular with faceted crystal, snap back, No. 616091
Strap/Bracelet: Contemporary 14K chevron link with deployant clasp
Signed: Case, dial and movement
Size: 20 x 34.5mm
Accompaniments: With an Extract from the Patek Philippe archives confirming the manufacture of the watch in 1937 and its sale September 30, 1938.