Year: 1980
Reference: 27910 10580
Model: Marlin Calendar (Water Resistant)
Movement: m105
Name: Coke (unofficial)
Type: Sports Watch
Complication: Manual Wind, Sweeping Seconds Hand, Calendar (Date)
Special Features: Black and red 60 second bezel. Hooded lugs
Case Diameter: 38 mm
Lug to Lug: 41 mm
Depth: 10.5 mm including crystal
This is available in 2 versions, one made in Taiwan, one Dial England.