Seiko Cal. 5660 - 315

This Quartz model from 1976 features a 40mm PVD Black case. It features a Green dial protected by a Acrylic crystal and offers 140m of water resistance. [seikata-wm-e60ce9a52cbc]

Also known as: Tuna, Emperor

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

40mm

Case Thickness

10.5mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

140m

Dial Color

Green

Jewels

21j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1976

Related Models

• Seiko 6349-325
• Seiko 7180-298
• Seiko 5652-961
• Seiko 3810-398
• Seiko 4450-244
• Seiko 0722-933
• Seiko 6397-442
• Seiko 5663-646
• Seiko 7029-823
• Seiko 6299-425
• Seiko 4595-874
• Seiko 5264-297