Rotary. A stainless steel manual wind chronograph wristwatch

Aquaplunge, Circa 1960

Model: Aquaplunge
Date: Circa 1960
Movement: Jewelled manual wind
Dial: Black, luminous baton hour markers, white minute divisions, white outer tachymeter scale, subsidiary dials at 3 and 9 for seconds and 45 minute recording, polished pointed baton hands with luminous inserts, centre chronograph hand
Case: Brushed and polished tonneau form, screw down back, bi-directional bezel, screw down crown flanked by twin pushers, No.618601-H
Strap/Bracelet: Khaki green NATO fabric
Buckle/Clasp: Steel buckle
Signed: Dial & movement
Size: 37mm

Rotary were founded in 1985 in the watchmaking city of La Chaux-de-Fonds. The brand was very popular in the UK market and eventually moved their headquarters there. In 1940 Rotary won a contract from the British government to supply field watches to the armed forces. Later in their history the brand focused on producing chronograph and dive watches.