Certina DS Vintage Wristwatch, Turtleback, ca. 1960s

Vintage Certina DS wristwatch from the 1960s with a classic round steel case, light dial and clear age-related patina. The case back features Certina DS's characteristic turtle motif, linked to the brand's Double Security concept.

The watch ticks and runs when wound. Timekeeping accuracy and service history have not been checked. The dial shows marked patina, and the watch is fitted with a newer Swiss Military Hanowa strap.

Specifications:
- Brand: Certina
- Series: DS (Double Security)
- Dating: ca. 1960s
- Case: steel
- Diameter: approx. 36 mm excluding crown
- Case back: Certina DS turtle motif
- Strap: newer Swiss Military Hanowa leather strap
- Function: ticks and runs when wound
- Service history: unknown
- Condition: fine vintage condition with clear patina on the dial and normal age-related wear