Seiko Cal. 5660 - 999

The Seiko 5660-999 represents an important milestone in Seiko's 1980 lineup. It features a Silver dial protected by a Hardlex crystal and offers 80m of water resistance. [seikata-wm-f084ead87396]

Also known as: Turtle, Bullhead

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

44mm

Case Thickness

14.3mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Silver

Jewels

34j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1980

Related Models

• Seiko 7045-235
• Seiko 5231-513
• Seiko 6376-933
• Seiko 6279-805
• Seiko 6221-188
• Seiko 6291-824
• Seiko 4493-311
• Seiko 7055-549
• Seiko 4513-398
• Seiko 5652-441
• Seiko 7058-782
• Seiko 5248-988