Seiko Cal. 5660 - 644

The 5660-644 is a sought-after Kinetic piece from Seiko's golden era. It features a Burgundy dial protected by a Hardlex crystal and offers 160m of water resistance. [seikata-wm-bf7acc7f4f25]

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

15.9mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Burgundy

Jewels

32j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1989

Related Models

• Seiko 3823-933
• Seiko 3870-336
• Seiko 4474-235
• Seiko 4442-879
• Seiko 4417-424
• Seiko 3872-412
• Seiko 6372-852
• Seiko 6176-258
• Seiko 4560-856
• Seiko 3838-290
• Seiko 6128-678
• Seiko 6337-565